Spider bungee chain adjuster/tensioner shown in photo not included with purchase of chains. Optional Spider Bungee Chain Adjusters can be ordered here:
Spider Bungee Adjusters
King Cobra Cable Dual Semi/Commercial Truck Tire Chains are sold in pairs (2 chains) and will cover four tires.
For highway use, these cables feature an extra large cross-chain with .525 inch diameter manganese alloy spring rollers. These chains also exceed the minimum chain regulations for all 50 states.