Product Details feature: swimming simulation Resistance bands with sliding handles allow you to target and train your swimming form while working out your tone and fitness without a pool. Strength Training High-quality resistance tubes allow you to perform vertical, horizontal and diagonal exercises for ergonomic and functional hand and forearm positioning. high quality This stretching exercise equipment is made of TPE material, which has excellent elasticity and stretching ability, and can hold up to 60 lbs. easy to carry No matter where you travel, these training resistance bands are easy to pack and carry for portable, functional weightlifting, strength and swimming skills training at home or outdoors. comfortable grip Ergonomically designed to fit your hand and give you a comfortable grip when using it. Specification: Size: 19*16*7cm Weight: 321g/278g/269g/317g/327g Material: TPE Color: Yellow, Red, Blue, Green, Black Quantity: 1pcs Package includes: 1*swimming trainer Specification: Yellow [20 pounds] recommended for teenagers Red [30 pounds] recommended for women Blue [40 lbs] Unisex Green [50 lbs] Unisex Black [60 pounds] recommended for men