4 Piece Red Metal Trays In 4 Sizes with Magnetic Backs Cushioned magnets and rubberstrips ensure a secure fit without scratching painted surfaces Steel construction for durability, extra strong magnets for secure hold Four sizes: 6 x 4-1/2, 8-1/4 x 4-1/2, 10-1/2 x 4-1/2, and 12 x 4-1/2 inches Weight capacities- from smallest to largest: 2.6, 5, 8.3, and 9.4 pounds respectivly All 4 trays have the same depth of 1-1/4 inches- you can attach these trays to your metal cabinet