This Sets Includes the Red 1/2", Black 3/4", & Purple 1 1/8" Wide Loop Resistance Bands with Resistance Ranging from 5 to 80 lbs. * This a Great Set for Beginners 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.