Weight Lifting Water Pack, loaded with unstable water masses inside, can improve stability, strength and core strength, build up firm muscles and shorten response time. Upon lifting the pack, water will roll from one side to the other, along with a shift in the center of gravity, the trainer’s muscles will promptly respond to the shift. This product can attain better workout result than ordinary type. The water pack is made of thickened, eco-friendly PVC, transparent color, sturdy and durable, and easy to clean. It can be readily used when loaded with water; folded and stored when poured out, making it a portable item.
