Features: Flexible , this Swim High Elbow Trainer enhances efficiency for , breaststroke, butterfly, and backstroke, promoting proper wrist arm alignment during water engagement. Featuring a secure wrist lock mechanism and 8 shaped ergonomic design, the swim maintains optimal palm to arm integration while preventing slippage during rigorous underwater drills. Suitable for both adult swimmers refining competitive techniques and children learning foundational strokes, this trainer adapts to various skill levels from beginners to advanced athletes. Optimize pool workouts or open water with this waterproof swimming gear that reinforces elbow positioning through repetitive training. Engineered for year round durability in chlorinated pools and natural bodies of water, the unisex swim trainer accelerates technical mastery while reducing shoulder strain during extended practice. Specifications: : PP+ Blue S code: 28x10.5cm Yellow L code: 34.3x10.5cm Package Includes: 1 pair of x-high elbow devices note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!