Fits Models: 38205 (Long Life Rotor Blade Kit, 20in or 21in Single-Stage Snowthrower) 38751 (Power Clear 721 R-C Commercial Snowthrower) 38754 (Power Clear 721 R-C Commercial Snowthrower) 38755 (Power Clear 821 R-C Commercial Snowthrower). California Prop 65 – This product can expose you to certain chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm.