Fitness chest expander: Get an adjustable chest expander resistance band! Muscle strength: Improve your muscle strength in leaps and bounds by working your chest, arms, legs, shoulders and back! High-elastic: Made of high-elastic TPE material which, compared with traditional springs, do not clamp hair or meat. Colours: Choose from green, blue, red, black or yellow! Five force levels: Just adjust the expander and explore the five levels of tension that suit you - perfect for everyone! Size: 6cm x 9cm x 45cm. Chest Expander Resistance Band | Black | Living Social