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 a durable EVA foam that dries quickly between uses. The function and shape of water dumbbells is quite simple. Be grippy, durable and provide resistance! A LOW-IMPACT AND POWERFUL WAY TO GET A WORKOUT: Water-based aerobics provides the opportunity to exercise in a low-impact environment without the shock impact that puts stress on the joints COMFORTABLE HUMAN DESIGN: Water dumbbells work by utilizing the natural resistance of water. Additionally, water dumbbells are extremely buoyant, making them difficult to hold underwater, providing 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 problems with your joints, dumbbells are excellent for working out your back, shoulders, arms and chest to help you get stronger and in better shape. PERFECT FITNESS EQUIPMENT: While all you really need is a swimsuit to jump into the water, there is some effective water exercise equipment you can use to increase the efficiency and enjoyment of your workout.