Klix Chest Expander Puller Exercise 33lb-44lb Fitness Resistance Cable Bands Tube Develops upper back, arms, and shoulders andstrengthen the chest and arms. Reduces stress on wrists & forearms, compared to most other chest exercisers. Lightweight for easy transportation with 5 resistance bands. Made from premium quality rubber latex and will not over-stretch unlike the cheaper ones. It will not recoil and twinge your chest hair as it may sometimes happen with the metal springs.