The Centr x HYROX Wall Balls are designed to help you bring out your inner power. Each ball is individually crafted, stitched, and tested to maximize your grip, so you can end your HYROX race strong. With multiple weight options and a PVC outer shell that’s double stitched at the seams, this durable wall ball will keep its shape as you put it through the ringer. Throw it against the wall, smash it on the ground, and hit the target on race day. It’s the only thing standing between you and the finish line. Centr is the Official Equipment Provider of HYROX. Centr and HYROX are taking the World Series of Fitness Racing to the next level with the world's first ever competition equipment made for the sport. Engineered with durability and performance in mind for training at the gym, at home, and in competition.Features Non-slip, scuff resistant vinyl shell for a consistent feel Double-stitched Polyvinyl Chloride (PVC) outer shells holds its shape as you get in your 75 or 100 HYROX wall balls Designed for even weight distribution so it maintains overall shape and balance in use