SUNSKY Weight-Bearing Fitness Water Bag Adjustable Water Power Bag Portable Water Injection Weightlifting Bag, Specification: 75 x 20cm (20kg) 75 x 20cm

Material: 1mm thick environmentally friendly PVC

Dimensions (diameter x width): 16x75cm (15kg); 20x75cm (20kg); 25x75cm (35kg)

Principle: Fill the bag with water and air, use the weight of water and the instability of the flow, not only to exercise common muscles, but also to train more nearby muscle groups

PVC material, easy to fold and easy to carry

There is a scale on the back, inject suitable water, and adjust the load freely