An eraser assembly is provided that includes a housing, a tray, a coupler, and an eraser insert. The housing has a concave shape including an interior portion. The tray has a retaining portion disposed in the interior portion of the housing and a mounting portion disposed opposite the retaining portion. The coupler is configured to releasably hold the tray to the housing. The eraser insert is configured to be mounted to the mounting portion. An eraser insert is also provided that includes a first side and a second side, an eraser pad, and a coupler. The first side includes a mounting surface and an eraser pad is disposed on the second side. The coupler is disposed on or about the mounting surface and is configured to detachably connect the eraser insert to an eraser assembly at the mounting surface.

Holder (2) for utilities (10, 11) for a metal whiteboard (9), characterised in that the holder (2) comprises a cover plate (3), which on a side hidden when in use, is provided with one or more supports (4, 5), at least one of the free ends of which is provided with a magnet (7, 8) to be able to place the holder (2) in a desired position on the whiteboard (9) and whereby the cover plate (3) on the same side hidden when in use, is provided with a brush (12) with bristles made of an elastic polymer, said bristles (13) being oriented with the bristle tops diagonally or perpendicularly to the surface of the whiteboard (9).

An eraser assembly is provided that includes a housing, a tray, and a coupler disposed between a surface of the tray and a surface of the housing. The housing has a concave shape including an interior portion. The tray has a retaining portion disposed in the interior portion and a mounting portion disposed opposite of the retaining portion. The coupler is configured to releasably hold the tray to the housing. An eraser insert configured to be disposed in the interior portion of the housing and to be enclosed by the tray.

An example dry eraser and associated systems and methods are described. The example dry eraser includes a body including a top wall, a bottom wall, a front wall, a rear wall, and first and second side walls. The body includes a first hollow inner compartment configured and dimensioned to receive therein a cleaning fluid that is configured to be dispensed from the first hollow inner compartment via a nozzle disposed proximate to the front or rear wall of the body. The dry eraser includes an erasure material disposed on at least a portion of the bottom wall of the body.

An eraser assembly is provided that includes a housing, a tray, a coupler, and an eraser insert. The housing has a concave shape including an interior portion. The tray has a retaining portion disposed in the interior portion of the housing and a mounting portion disposed opposite the retaining portion. The coupler is configured to releasably hold the tray to the housing. The eraser insert is configured to be mounted to the mounting portion. An eraser insert is also provided that includes a first side and a second side, an eraser pad, and a coupler. The first side includes a mounting surface and an eraser pad is disposed on the second side. The coupler is disposed on or about the mounting surface and is configured to detachably connect the eraser insert to an eraser assembly at the mounting surface.

An eraser assembly is provided that includes a housing, a tray, and a coupler disposed between a surface of the tray and a surface of the housing. The housing has a concave shape including an interior portion. The tray has a retaining portion disposed in the interior portion and a mounting portion disposed opposite of the retaining portion. The coupler is configured to releasably hold the tray to the housing. An eraser insert configured to be disposed in the interior portion of the housing and to be enclosed by the tray.

An example dry eraser and associated systems and methods are described. The example dry eraser includes a body including a top wall, a bottom wall, a front wall, a rear wall, and first and second side walls. The body includes a first hollow inner compartment configured and dimensioned to receive therein a cleaning fluid that is configured to be dispensed from the first hollow inner compartment via a nozzle disposed proximate to the front or rear wall of the body. The dry eraser includes an erasure material disposed on at least a portion of the bottom wall of the body.

A magnetized writing and amusement device. The device having a first end and a second end. Each of the ends having a magnet embedded with the interior. The magnetics allowing for the coupling of multiple devices together. The first end functions as a cap for the device and conceals a writing implement located within the internal structure of the device.

A holder for utilities, for a metal whiteboard, includes a cover plate, which on a side hidden when in use, is provided with one or more supports, at least one of the free ends of which is provided with a magnet to be able to place the holder in a desired position on the whiteboard and whereby the cover plate on the same side hidden when in use, is provided with a brush with bristles made of an elastic polymer, said bristles being oriented with the bristle tops diagonally or perpendicularly to the surface of the whiteboard, whereby the edge of the cover plate shows a recess, the shape of which is complementary to the shape of a board eraser that can be positioned against the recess.