The ROP Shop 2 Link TIRE Chains 18x9.50-8 18x950-8 18-9.50-8 Tractor Mower Rider Snowblower 2 Link TIRE CHAINS 18x9.50-8 18x950-8 18-9.50-8 For Tractor Mower Rider Snowblower Chain Specs: Outside Links 0.157" (4mm) / Crosslinks 0.238" (6mm) Set of 2 Zinc-Plated Chains. Chains Only, Tires NOT Included Quality Aftermarket Part with 1 Year Warranty