Neptune Barbell Pull Up Assist, Strength & Resistance Bands For Pull up Assistance, Chin ups, Muscle Ups, Ring Dips, Gymnastics, CrossFit, Power Lifting - 41" Loop Strength Bands (Free Shipping) Includes (1) Band - Blue Medium - 2 1/2" Wide For use getting started on training for bodyweight pull ups and adding resistance for elite athletes and people over 200 pounds. Also a good choice for adding increment weight to power lifts. Resistance 60 150 pounds. Strength Bands are an incredible versatile tool for adding resistance to stretching, lifting, and bodyweight training exercises. All bands are made of 100% natural latex through a continuous layering process to ensure long life. All bands are 41 in length and 3/8 thick.