ProsourceFit Gymnastics Rings are made with premium-quality Lexan, perfect for gyms as well as home use. Practice exercises like muscle-ups, pull-ups, levers, dips and other workouts anytime you want with straps that are easy to install. The heavy duty, durable straps are an extra-long 17-feet so you can use them in a variety of indoor or outdoor spaces. They are easy to adjust for different heights and uses, from kids gymnastics practice to adult workouts and they hold up to 1,000 pounds. The smooth wooden rings are 1.25-inches in diameter and provide traction and grip for safer exercises, even without chalk. Train like a pro, train with ProsourceFit!