SX Propane Burnishers are designed for premium comfort, safety, durability, and performance. Available in 21″, 24″ and 27″ sizes, SX machines are the easiest and safest to operate with standard features such as an electric clutch, bright LED headlight, SAM Safe Air Monitor carbon monoxide alarm, on board vacuum system, and muffler heat shield. For the best in safety, comfort, and performance, choose SX machines.