Swimming training paddles for adults and kids.nDurable plastic design.nComfortable and durable hand straps.nWide design for maximum propulsion.nLight plastic maximizes usability and comfort.nCompares to Speedos. Quality contoured swim everyday training paddles. Designed and manufactured as adjustable to fit a variety of teens to adults both boys and girls. Great training aid for professional swimmers who wants to maintain and correct freestyle stoke mechanics. Imaged attached of 8 year old wearing paddles. Straps allows for adjustable sizing to fit grown adults too. Using Free Shark paddles increases your resistance, making you work harder as you pull your arms through the water, strengthening the muscle groups in your back, chest, shoulders and arms. Challenge yourself by sprinting with the paddles on. It can also help you to work on your technique as well as your arm pull, making you feel much more powerful through the water. Satisfaction guaranteed.