Wellsem Leg Strength Workout Trainer Resistance Bands Taekwondo Fitness Exercise Tool Equipment Packing: 4 bands + 2 leg trap + 1 net bag Strength: about 50lbs Strengthen leg, hip, and core muscles to improve athletic performance; running speed, vertical jump, endurance Ideal for use during speed and agility training for all sports (Unique SWIVEL CLIP designed for multi-directional movement) Used worldwide by athletes, coaches, trainers, physical therapists, and healthy minded people of all ages (7+)