SureFit Universal 16×6.5-8 Tire Chains Snow Throwers Snow Blowers 1 SetSureFit Universal 16×6.5-8 Tire Chains Snow Throwers Snow Blowers 1 Set. Compatible with 16×6.5-8 snow thrower tires. For knobby tread tires only. SureFit Universal 16×6.5 Tire Chains. This product is brand new and will come in original factory packaging. We are proud to be.