The inventive concept disclosed is a toothbrush assembly comprising a cylindrical toothbrush head and a handle. The toothbrush head comprises (1) a cylinder-shaped structure supporting a plurality of bristles radiating orthogonally outward in a complete 360-degree orientation from the axis of the cylinder and (2) a dome-shaped structure attached to the distal end of said rod or cylinder, having a plurality of bristles radiating outward orthogonally from the exterior of said dome. The circumference of the base of the dome is corresponds to the circumference of said cylinder. The proximal end of said toothbrush head may be permanently, or detachably, connected to the handle. This design allows a user of the toothbrush head to continuously have bristles in contact with some portion of the mouth or gums while brushing, and to rotate the cylinder-domed toothbrush head in a multiplicity of directions.

A semi-circular male alignment feature elastic averaging alignment system utilizing a plurality of semi-circular male alignment features which interface by elastic averaging with a plurality of female alignment features, wherein semi-circular male alignment features of a first component are received during a mating process by respective female alignment features formed in a second component, whereby precise alignment of the first and second components and stiffness are provided by elastic averaging of the male and female alignment features.

A tool apparatus comprises an operative member and a handle connected to the operative member. The handle comprises a core element having an elongated body, an outer surface and first and second ends opposite to each other. At least the second end is connected to the operative member. The tool handle also comprises at least one cavity extending inwardly from the outer surface of the core element and a plurality of insert blocks selectively receivable in the cavity. The tool handle further comprises an overlay disposed on the core element, wherein a height of the projection on exterior surface of the insert block is no less than a thickness of the overlay, thereby exposing the upper surface to an external environment so as to be visible to a viewer.

A tool apparatus comprises an operative member and a handle connected to the operative member. The handle comprises a core element having an elongated body, an outer surface and first and second ends opposite to each other. At least the second end is connected to the operative member. The tool handle also comprises at least one cavity extending inwardly from the outer surface of the core element and a plurality of insert blocks selectively receivable in the cavity. The tool handle further comprises an overlay disposed on the core element, wherein a height of the projection on exterior surface of the insert block is no less than a thickness of the overlay, thereby exposing the upper surface to an external environment so as to be visible to a viewer.

A garden tool apparatus comprises a rod, a tool head, and a rotatable handle apparatus. The rotatable handle apparatus comprises a hand gripping apparatus that in turn comprises a lower cylindrical body that comprises threads and a hole on a side thereof. The rotatable handle apparatus further comprise a rotatable apparatus that comprises a closed cylindrical body that in turn comprises a plurality of cavities radially disposed on an outer wall thereof. The closed cylindrical body is connected to the rod. The rotatable apparatus is connected to the hollow portion. The hollow portion is freely rotatable against the rotatable apparatus. The rotatable handle apparatus further comprises a cylindrical sleeve enclosing the rotatable apparatus and is connected to both the rotatable apparatus and the hollow portion. The rotatable handle apparatus further comprises a latch apparatus that comprises an impediment pin that is disposed through the hole of the lower cylindrical body and engages with the plurality of cavities of the rotatable apparatus.

A stackable ice block mold includes a removable support bar that extends across an upper portion of ice block mold from one side to an opposing side thereof, and a handle member that includes a pair of legs extending downwardly therefrom. The handle member is preferably positioned above the removable support bar, in some embodiments, and the legs extend downwardly into the ice block mold. The ice block mold is filled with water, so that the water level is below handle member in some embodiments, and so that the legs extending downwardly from the handle member are substantially submerged in the water. Upon freezing, the legs of the handle member are frozen into the ice block, allowing the handle to carry the ice block. The mold may be collapsible, and the handle may be recessed into the ice block, and the ice blocks themselves are stackable in various embodiments.

A stackable ice block mold includes a removable support bar that extends across an upper portion of ice block mold from one side to an opposing side thereof, and a handle member that includes a pair of legs extending downwardly therefrom. The handle member is preferably positioned above the removable support bar, in some embodiments, and the legs extend downwardly into the ice block mold. The ice block mold is filled with water, so that the water level is below handle member in some embodiments, and so that the legs extending downwardly from the handle member are substantially submerged in the water. Upon freezing, the legs of the handle member are frozen into the ice block, allowing the handle to carry the ice block. The mold may be collapsible, and the handle may be recessed into the ice block, and the ice blocks themselves are stackable in various embodiments.

A tool assembly includes an elongated handle and a locking system for attaching a tool head to the handle. The tool head can be a floor care tool or other accessory that can be attached to the handle such that the elongated length of the handle can aid in the use of the tool attached. The locking system includes a keyed locking collar for engaging at least a first portion of the tool head, and a locking cap rotatably positioned on the handle for engaging a second portion of the tool head. The handle can be extendable, such as by telescoping, and can also be overmolded.

A surgical hand grip for a surgical tubular shaft instrument is provided. The hand grip includes a coupling device for coupling to a tubular shaft tool having a tubular shaft and a force transmission element movable back and forth relative thereto. The coupling device has a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft. A gripping device is connected to the coupling element and is transferable from a non-actuating disposition into at least one actuating disposition and vice versa thereby changing the mutual relative spacing between the coupling element and the connecting element. The hand grip has a guiding device with a guiding body for guiding the coupling element during the transfer from the non-actuating position into the at least one actuating position along a grip axis independently of the disposition of the gripping device during the transfer.

A surgical hand grip for a surgical tubular shaft instrument is provided. The hand grip includes a coupling device for coupling to a tubular shaft tool having a tubular shaft and a force transmission element movable back and forth relative thereto. The coupling device has a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft. A gripping device is connected to the coupling element and is transferable from a non-actuating disposition into at least one actuating disposition and vice versa thereby changing the mutual relative spacing between the coupling element and the connecting element. The hand grip has a guiding device with a guiding body for guiding the coupling element during the transfer from the non-actuating position into the at least one actuating position along a grip axis independently of the disposition of the gripping device during the transfer.