Package Included: 2* Waistband Ankle,1* Strapsa belt(can be used for hand ring), 2* 30cm resistance rope, 1* carry bag Made of Malaysia latex tube, strong rebound, resistance, to prevent collapse, enhance the bounce Resistance Rope . Play a very active role in the basketball and volleyball training jumping sports training needs From a biomechanical point of view to improve the leg strength to do anything you can do to achieve the squat action or participate in any sport, for enhancing the jump. Speed and strength are very helpful with rubber foot ring / ring is adjustable wrist, snap Department can add more elastic rope to increase resistance. Play a very active role in the basketball and volleyball training jumping sports training needs From a biomechanical point of view to improve the leg strength to do anything you can do to achieve the squat action or participate in any sport, for enhancing the jump, speed and strength are very helpful with rubber foot ring / ring is adjustable wrist, snap Department can add more elastic rope to increase resistance.