Magnetic surface keeps steel springs, screws and other small, easy-to-lose parts safely where you put them. Has just enough magnetic pull to capture the parts without magnetizing them, with raised sides to keep them corralled. Great when taking apart small assemblies, like trigger groups, to keep the parts from rolling off your work bench. Mfg: Gun Video Catalog SPECS: Plastic tray with magnetic pad, black. Approximately 6" (15.2cm) long, 4" (10.2cm) wide, 3/8" (9.5mm) height.