A cartridge may include at least one blade, and a frame supporting the at least one blade to expose the at least one blade at a front and configured to receive the at least one blade in a longitudinal direction. The cartridge may also include a first guard member disposed in front of the at least one blade and configured to align hair entering the at least one blade, and a second guard member disposed in front of the first guard member. The cartridge may further include an opening formed between the first and second guard members and configured to penetrate the frame in a direction from the front to a rear. A width of the opening in a lateral direction perpendicular to the longitudinal direction may be greater than a half of a width in a lateral direction defined by all of the at least one blade.

Some embodiments may include a personal grooming device. Such a device may include a head portion. The head portion may include a means for mounting at least one razor. An embodiment may also include a means for rotating the razor clockwise and/or counterclockwise by a predefined number of degrees less than one full turn.

Some embodiments may include a personal grooming device. Such a device may include a head portion. The head portion may include a means for mounting at least one razor. An embodiment may also include a means for rotating the razor clockwise and/or counterclockwise by a predefined number of degrees less than one full turn.

A modular personal care implement including a surface treatment head having a first end with an applicator and a second end with a first detachable connector; and a first interconnector having a first end with a second detachable connector and a second end with a third detachable connector, in which the second detachable connector is removably attached to the first detachable connector of the surface treatment head. Also provided are a method of providing a modular personal care implement and a kit including a modular personal care implement.

A modular personal care implement including a surface treatment head having a first end with an applicator and a second end with a first detachable connector; and a first interconnector having a first end with a second detachable connector and a second end with a third detachable connector, in which the second detachable connector is removably attached to the first detachable connector of the surface treatment head. Also provided are a method of providing a modular personal care implement and a kit including a modular personal care implement.

In another aspect, the invention features, in general a shaving cartridge assembly with a housing having a circular appendage defining a cavity extending through the housing. A shaving surface is mounted to the housing. A washer is mounted over the circular appendage and onto a flange of the housing. The washer is a ferromagnetic metal.

In another aspect, the invention features, in general a shaving cartridge assembly with a housing having a circular appendage defining a cavity extending through the housing. A shaving surface is mounted to the housing. A washer is mounted over the circular appendage and onto a flange of the housing. The washer is a ferromagnetic metal.

A shaving system with a handle having a distal end and a proximal end. A shaving cartridge assembly is mounted on the proximal end of the handle. The shaving cartridge assembly includes a shaving surface. A coupling interface between the shaving assembly and the handle. The coupling interface includes a first surface separable from a second surface. The first surface defines a rinse cavity. An appendage extends from the second surface and into the rinse cavity. The first surface is flat, circular and magnetically coupled to the second surface.

A shaving system with a handle having a distal end and a proximal end. A shaving cartridge assembly is mounted on the proximal end of the handle. The shaving cartridge assembly includes a shaving surface. A coupling interface between the shaving assembly and the handle. The coupling interface includes a first surface separable from a second surface. The first surface defines a rinse cavity. An appendage extends from the second surface and into the rinse cavity. The first surface is flat, circular and magnetically coupled to the second surface.

A cutting device and a method are designed to facilitate precise cutting and prevent a user from cutting fingers and hands. The cutting device includes a body and a lid. The body has a mounting mechanism, to which a razor blade is removably attached. The lid is pivotably coupled to the body by a spring. Moreover, the lid partially covers the razor blade so that at least one cutting edge of the razor blade is exposed. Thus, the cutting device safeguards the razor blade and protects the user's fingers, hands, and other body parts while allowing at least one cutting edge of the razor blade for cutting operations.