Magnetic Mini Tray Holders - 4 Pack Multi Color - Use In Garage, Home, Construction - For Nuts, Bolts, Washers, Iron, Nails, Screws, Sockets, Bits, Etc. - 4 Inch Diameter x 1-1/4 Depth - By Katzco HIGH QUALITY CONSTRUCTION- Heavy-gauge polished Aluminum construction Base bowl with strong magnetic built into the base- Includes 4 trays for more organizational flexibility, This bench top accessory keeps small parts accessible and all in one place. HOLDS SMALL PARTS- The magnet parts bowl will hold any small steel or ferrous metal object. Keeps nuts and bolts, parts, and small tools within reach of work area. RUBBER COATED BOTTOM -Base has a rubber bottom coated magnets to prevent marring of painted to finished surfaces , You can Mount The tray horizontal or even vertically or up-side-down. IDEAL FOR STORAGE- Keeps small metal parts and tools from getting lost Great addition to any workshop Holds Small Parts securely, Helps prevent lost or misplaced parts, fasteners, and tools Screws for nuts, bolts, screws, nails, needles & thimbles. EXTRA MAGANATIC- 4 1/4" diameter Aluminum steel tray Hold Adheres to any ferrous metal surface Attach the bowl to any metal machine in your shop to hoods, fenders, or other ferrous metal surfaces Even works sideways and upside down.