Amzdeal Olympic Gymnastics Strength Fitness Hand Rings, Pull-Up Cross-fit Rehabilitation Exercise High-quality ABS plastic: the rings are very sturdy and the bands are quite strong. Good grip even without chalk Advanced anti-slip thread design keeps the rings stable, enables rapid installation, easy adjustment and light weight. Straps can be easily hung over bars, power racks, beams, eye bolts, ceiling mounts or trees and secured in place using the buckle Portable and easy to set up; Bands are easily adjustable to suit your needs. Hundreds of possible strength exercises: push-ups, pull-ups, muscle-ups...