Description:Feather Butterfly brand spider bungees are an excellent choice for adjusting tire chains. Spider bungees work by pulling the slack evenly out of the chain toward the center hub of the bungee. These spider bungees are made from a combination of elastomeric and natural rubber products to increase elasticity and durability, and come with metal hooks crimped onto the arm ends. They work with both cable and link tire chains, and can increase the chains life by up to 25%.