This Toro 21" (53 cm) self propel, heavy duty walk behind mower features a premium commercial-grade Kawasaki ZS FJ180V engine with zone start and a sealed, maintenance-free transmission. The 2-bail control system makes it easy to vary the speed where you need it. For the best productivity, we've included a 1 gallon fuel tank, Recycler cutting deck and the large, easy-empty bagging system. The deck is made of corrosion-resistant aluminum alloy and cables are also protected with steel cable guards mounted to the handle bar. It's everything you want in a heavy-duty walk behind.