Body-Bands Resistance Band Training Set #5 (Set of 5 bands) This Set includes the Red 1/2", Black 3/4", Purple 1 1/8", Green 1 3/4", & Blue 2 1/2" Wide Loop Resistance Bands with resistance levels ranging from 10 to 150 lbs. This a Great Set for Intermediates to Advanced to use for Strength Training, Pull Up Assistance, Resistance Training, Isometric Training and Cross Training Programs such as P90X & CrossFit Each Band has a 41" Lay Flat Length and has 82" Circular Circumference Body Bands Basic Training Series are Layered Loop Bands which are Ideal for Individual Users from Beginners to Athletes These Bands are Made by Layering a Continuous Sheet of Natural Rubber Latex which gives them Added Strength and Durability. They come with a 30 Day Money Back Guarantee & a 1 Year Warranty.