Xtech XH-RBS100 11pc Resistance Band Set with 5 High Quality Combinable Bands, 2 Foam Handles, 2 Ankle Straps, 1 Door Anchor, & Case for Muscle Building exercise, Weight Loss, ABS, Rehab, & Yoga Avoid the trips to the Gym and do your workouts in the comfort of your own home or while you're on vacation Resistance bands are versatile, easy on the joints, and target muscle groups with controllable constant tension, and are portable and lightweight. Combinable/Stackable with 31 different possible ways of using them, resistance level of up 73lbs, max tension 146lbs. (73x2=146) Great for many different exercises; Lower-Body Exercises, Back Exercises, Chest Exercises, Shoulder Exercises, Arms Exercises, Core Exercises Kit Includes: 5 Color-Coded Resistance Bands; Yellow - Extra Light (6 - 8 lb.) Green - Light (9 - 11 lb.) Red - Medium (12 - 14 lb.) Blue - Heavy (15 - 18 lb.) Black - Extra Heavy (22 lb.), 2 Handles, 2 Ankle Strap, 1 Door Anchor and 1 "Xtech" Storage Bag Door anchor comes with a small ball sewn into the strap. This ball is used to anchor the strap to one side of the door when closed