Functional Fitness 12 inch Continuous Loop Powerlifting Band Resistance Levels from 40-80 lbs (18-36 kg). Completely Customizable to Your Needs Great for Weight Lifting, Pilates, Yoga, and Stretching 12" Loop Rubber band, more versatile and durable that your average tube band Not sure which band is for you? Check out the description for help 60-day Warranty with 100% Satisfaction Guarantee