This product takes explosive movement training to the next level. Accommodates 30 plus drills which emphasize all the major muscle groups and also helps train speed, agility, balance, quickness, and explosiveness. Comes with three key components: ‘H’ Harness, 10’ – 105 pound Slastix™, and anchor. Padded harness fits over shoulders and is large enough to fit over shoulder pads, but adjusts small enough to fit children.