MTS3520 Features: -Permanent magnet with rubber scratch guard.-Can be used horizontally, vertically, or upside down.-Tray has two magnets This stainless steel parts tray allows you to store nuts, bolts, tools, and etc magnetically..-9.5"" x 5.5"" Stainless Steel Magnetic Parts Tray. Warranty: -1 yr warranty on material and workmanship.