Magnetic Parts Trays- 3'' Round Keep loose nuts, screws and other small metal items in reach while under the hood or under the car! Smooth stainless steel trays have powerful ceramic magnets with rubber covers in the base to secure them to a metal toolbox or table while keeping important metal pieces at hand. Store metal parts and tools during assembly and disassembly. Ideal for mechanics, craftsmen, repairmen and hobbyists. Works in any position - flat, sideways or upside down. Heavy gauge, stainless steel with rubber base to prevent scratching. Great for job site, garage, office and home. Heavy gauge, stainless steel Protective rubber base to prevent scratching Use in any position, upside or down