ProSource Tube Resistance Bands Set with Attached Handles, Door Anchor, Carrying Case and Exercise Guide TOTAL BODY WORKOUT - Designed to target all of your muscles through a full range of motion for increased strength and toning, without any machines or special equipment. DURABLE CONSTRUCTION - Made with a double-dipping process to ensure heavy duty, high performance latex that holds up to stretching and heavy use. CUSTOMIZABLE - 5 color-coded, 48-inch bands with attached EXTRA-LARGE comfortable foam handles provide various strength levels and exercises in one set: Yellow (2-5 lb), Green (5-8 lb), Red (8-12 lb), Blue (12-16 lb), Black (16-20 lb). ON-THE-GO CONVENIENCE: Comes in a carrying case with a convenient door anchor so you can fit in a workout wherever you go. Includes an exercise guide with instruction, strengthening tips, and workout ideas. VERSATILE: Resistance bands are extremely versatile, great for rehabilitation, toning and strengthening muscles, Pilates exercises, P90X, outdoor workouts, and travel.