If you are looking for true rebounds and rapid recoiling than the Title Boxing Gyro Balanced Leather Punch Training Speed Bag is just what you need. Top grade leather shell with triple reinforced leather seems for relentless and balanced workouts every time.Constructed with precision Gyro Balanced manufacturing to assure true rebounds and rapid recoiling that helps develop lighting fast reflexesImproves quickness and hand-eye coordinationTop grade leather shell with triple reinforced leather seems and lacing for relentless and balanced workouts every time Includes a butyl rubber pro bladder with special internal balancing for maximum resultsSwivel sold separately