Material & Size: Stainless steel inner bowl and plastic outer bowl. Size: large outer bowl: 15 x 5.2 cm (diameter x height); small inner bowl: 10.6 x 4.7 cm (diameter x height) Design: This dog bowl attaches directly to the crate for easy feeding. Or you can use it as a base bowl. There is a fixed plastic bowl and a metal bowl, you can also separate them into two bowls. Ideal bowl: lightweight and practical stainless steel dog crate bowl, designed to prevent the t knock food or water, it’s easy to hang and not too heavy to cause the dog’s crate to warp. Easy to use: This crate bowl is removable for easy hanging. cleaning, filling or removal. You can attach the plastic bow to the cage and simply remove the stainless steel bowl. How to install: loosen the white nut of the bowl and put the plastic screw part into the bowl. space between the two iron wires of your dog cage, tighten the white nut, then it’s over. Package content: 1 stainless steel bowl