High quality: The swimming arm strength trainer is made of environmentally friendly high quality TPE material. Yellow (20 lbs.), green (50 lbs.), red(30 lbs.) blue (40 lbs.), black (60 lbs.) Easy to use: Swimming resistance bands with sliding handles allow you to target and train your swim stroke while working tone and fitness even without a pool Easy to carry: Lightweight and portable for swimming training anywhere. Whether you are a beginner or a professional swimmer, you can find the suitable intensity of your workout Improve your strength: Swimming resistance tube let you perform vertical, horizontal, and diagonal exercises for hand and forearm positioning that is ergonomic and practical Comfortable accessories: The webbed surface of the swimming training device is smooth, which can fit the palms well when used Specifications : Material: TPE Weight: 0.35kg Color: Yellow/Red/Green/Blue/Black Size: 20 pounds pull for children and 60 pounds pull for adults Package included: 2 x Swim Hand Webbed 2 x Resistance band includes: 2 x Swim Hand Webbed 2 x Resistance band