Product parameters: Material: EVA Color: blue, pink, green Dimensions: 27 x 15 cm Package includes: 1 pc water dumbbells Product description: LIGHTWEIGHT AND PORTABLE: They are made of durable EVA foam that dries quickly between uses. The function and shape of water dumbbells are quite simple. Be easy to grip, durable and provide resistance! A GENTLE AND POWERFUL WAY TO EXERCISE: Water-based aerobics offers the opportunity to exercise in a gentle environment without the jarring impact that stresses the joints. COMFORTABLE HUMAN DESIGN: Water dumbbells work by utilizing the natural resistance of water. In addition, water dumbbells are extremely buoyant, making them difficult to hold underwater, which provides an extra dimension of resistance. HELP YOUR BODY GET HEALTHY: Water dumbbells are a perfect way, a great workout for those who want a strictly gentle workout. Whether you are just recovering from an injury or have a sore joint, dumbbells are great for training your back, shoulders, arms and chest to help you get stronger and in better shape. PERFECT EXERCISE EQUIPMENT: Although all you really need is a swimsuit to jump in the water, there is some effective water equipment you can use to increase the effectiveness and fun of your workout.