The Nut Tray Magnetic Parts Tray Use to keep parts and tools from being misplaced or lost while working in the garage or workshop. Magnetic tray prevents items from rolling or sliding and can be used at any angle. Heavy duty, teflon coated steel resists scratches and corrosion. Three 3 1/4 industrial magnets with rubber covers that prevent surface damage. Dimensions: 10 W x 2 D.