Attention: This is just sand bag, not including sand.
Specifications: 50LB/75LB/100LB/150LB Material: nylon Product using: sand filling, mainly used for strength training, CF, gym, etc. Advantage: the zipper and Velcro are double-enclosed to ensure that the filling will not leak. The sand bag is wear-resistant and fall-resistant, and the filling could be loaded and unloaded at any time. It is a heavy-weight training equipment that is convenient to carry.