An eraser is a tool designed to remove pencil marks from paper. It typically has a rubbery texture and is available in various shapes, sizes, and colors. Some pencils even come with erasers ...

The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...

There are some inventions that look completely pointless to the untrained eye: who would ever need a motorized garbage can, an electric pencil sharpener or a battery-powered eraser? Quite often ...

However, the AAAR rejected the appeal, affirming the original ruling that the supply was mixed and should be taxed accordingly. As a result, the stationery kits, which include sharpeners, would ...