[High quality material]: The pull buoy is made of 5 layers of skin-friendly EVA, which provides buoyancy and low water absorption. Thanks to its robustness, it guarantees you continuous use. It is environmentally friendly and non-toxic. [Swim training aid]: This is a great swimming device to help build your upper body strength when swimming. Perfect for pulling floats for swimming, training any swimmer and available in both adult and junior models, you can have a fantastic water workout. [Correct your swimming position]:The pull float helps develop upper body strength by floating your legs, all you need to do is place the EVA pull float on your thighs, the swim pull float provides foot buoyancy without kicking your legs. You can focus on strengthening your back, shoulders and arms. You can then master breath control and swim efficiently. [WARNING]: Not for use as a life-saving buoyancy device. Adult supervision is required when using this product. Dimensions: length 23.5cm, width 13cm