Improve your response time, hand speed, and agility with the durable UFC(R) Double End Bag. Double end speed bags are the perfect tool for training quick reflexes. Training Benefits Quick rebound movement of the bag improves reaction time and provides mobility training to avoid your opponents strikes 8" diameter size helps build endurance and make a challenging workout Durable Design Durable material with reinforced stitching that is made to last Easy mounting straps that are compatible with all speed bag platforms and double-end attachments Material: Polyurethane Leather Size: 8"