Abstract: The ergonomic device of the present invention relieves and prevents finger, hand and arm stress which normally accrue when a computer keyboard or the like is used over an extended period of time at an improper height with respect to the keyboard operator. The device includes a number of stacked releasably interconnected sheets of uniform or of varying thicknesses of from about 1/8 inch to about 1/2 inch, although other thicknesses are also suitable. The sheets operate as a support block for the keyboard, raising it to a heighth which prevents the aforementioned stress during use of the keyboard. The sheets preferably are of plastic or the like and preferably are color coded if they are of differing thicknesses, in order to facilitate their proper reassembly into the support block. The upper surface of the uppermost sheet is non-slip so that a computer keyboard will be held thereagainst without movement. Such upper surface can carry a plurality of spaced lines to help center the keyboard thereon.

Abstract: A laminate repair sheet is useful for altering the appearance of the visible face of a nozzle. The sheet comprises a plastic upper layer, a middle layer of tacky, water-resistant adhesive, and a bottom layer of a release material. Annular rings comprising the upper layer and the middle layer can be peeled from the bottom release layer for application to nozzles of varying diameter.