The Iron Body Fitness Weight Training Bag, is
a versatile tool to increase muscle mass and burn calories. Add resistance to any fitness workout while increasing strength, power, stamina, and endurance. A heavy duty durable thick nylon, double stitched bag with six different grip handles. Four inner sleeve bags for adding weight, typically sand is used, and each bag is sealed with a double wall wrapped hook & loop closure. The main bag can then be sealed via zipper, snap domes, and adjustable buckles for different weight capacities. Weight can be adjusted from 4.5kg – 22.7 kg ( 50 lb) Sand not included.