One Puma brand replacement air compressor tank wheel assembly. This wheel assembly is made of a plastic rim with a solid rubber tire. The total outside diameter is just under 10" with a 3/4" inside diameter axel hole, and a tire width of just over 2". This is a Puma OEM part and is exactly as pictured. Most commonly used on Puma model numbers PK5020, PK3015, PK3011, and many others.