This is a used Steiner 72 mower deck designed specifically for Steiner lawn tractors. The deck is made of heavy gauge steel. It is compatible with the 430 Max model. This deck is a perfect fit for any Steiner lawn tractor owner looking for a deck. Serial # is 1564. I used this deck; this summer. But do not need it as I use a large zero turn, to mow grass and use my Steiner as a lawn tractor.