1.Multiple functions: Take your water training to the next level with our multifunctional water weights for the pool. Perfect for aquatic fitness, sports, lessons and more, including water aerobics, dance and underwater training. 2.Easy to carry: Light and easy to carry. These water weights for the pool are ideal for travel and storage. You can fill them with water when you need to use them, and empty them when you are done. They help you get a fullbody workout in the pool and build strength in the upper body and lower back. 3.Widely used: The water weights for the pool have a wide range of applications, meeting the fitness needs of adults and children. Safe for both the pool and spa, it is not used as a flotation device. 4.Revolutionary resistance: Helps muscles build endurance by providing additional resistance underwater. This can also be used as a weight gain tool for aerobic exercise, allowing you to moderately burn more calories and increase flexibility.