Grip-On Tools Magnetic Toolbox Tray Set - 4-Pc. Set, Model# 67447 Rubber-coated contacts will not mar or scratch toolbox Heavy-duty 20-gauge steel construction Sizes includes 6in.W x 4 1/2in.D; 8 1/4in.W x 4 1/2in.D, 10 1/2in.W x 4 1/2in.D; 12 1/8in.W x 4 1/2in.D