Petzl Tandem Speed Pulley P21 SPE
Petzl Tandem Speed Pulley P21 SPE, The TANDEM SPEED is the fastest of the transport pulleys and is specifically designed for ropes course "zip" lines. This is a stainless steel double pulley that is built for strength and durability. It will accept up to 3 carabiners and has sheaves mounted on sealed ball bearings for speed. Efficient double pulley for travel along ropes and cables.