The Stretch D Loop Pliers from Outer Limit Archery is the most advanced D loop installation tool in the market. Its patent pending design does things that other pliers cannot. The Stretch D Loop Pliers multi feature design aids in the complete process of installing a D loop. It gives you the shortest D loop possible which can lead to bow speed increases of 3 to 5 feet per second. The Stretch uses just 3 simple steps and requires no additional tools.