Body Bands Resistance Band Training Set 4 includes 1 each of the 1/2", 3/4", 1 1/8", & 1 3/4" Bands. Each band is a 41" Continuous Loop Band and offers a resistance range based the size scale below. Body-Bands are ideal for a home gym or to add resistance training to any fitness routine. This is a great set for beginners to intermediates to use for strength training or as part of a Cross Training Program. Body Bands are great for: * Strength Training, Pull Up Assistance, Resistance Training, Isometric Training and Cross Training Programs such as P90X & CrossFit * Pilates and Yoga for Strength and Flexibility * Personal Trainers and Fitness Instructors * Business travelers or anyone on the go * Athletes through any fitness level * A Simple, Fast, and Effective Workout 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. These high quality bands are made from natural rubber latex using a single continuous layering process. This gives each band 11 layers of latex for added strength and performance...much better than molded bands most others sell at this price point. Loop Band Resistance Levels: * 1/4" | Light Orange | 5 to 15 Pounds of Resistance * 1/2" | Red | 10 to 35 Pounds of Resistance * 3/4" | Black | 30 to 50 Pounds of Resistance * 1 1/8" | Purple | 40 to 80 Pounds of Resistance * 1 3/4" | Green | 50 to 120 Pounds of Resistance * 2 1/2" | Blue | 60 to 150 Pounds of Resistance * 3 1/4" | Orange | 70 to 180 Pounds of Resistance * 4" | Grey | 80 to 200 Pounds of Resistance Why Body-Bands? Body-Bands offers you great high quality products at very competitive prices. Including a 60-Day Money Back Guaranty and a 1-year warranty. .