Arm pulling resistant band designed to strengthen chest, arms and shoulders. Overhead pull down helps broaden the upper back. Detachable spring exerciser included Pectoral muscle training equipment reduces stress on wrists and forearms compared with other chest exercisers. Detachable spring exerciser included Chest expander lightweight, easy to transport and store. You can exercise at home or in the office. Detachable spring exerciser included Dual purpose expander can withstand a strong traction force and adapt to various strength training. Detachable spring exerciser included Use scenarios Home or office workouts. You can perform a complete upper body routine at home or in the office to train chest, arms, shoulders and upper back. Quick breaks during the day. Use for a short upper body routine to maintain strength and mobility. Travel or small space workouts. The lightweight portable design fits in a bag or workspace for gym or hotel room training. Key attributes Function: Upper body conditioning focused on chest, arms, shoulders and back Compatibility: Detachable spring exerciser provides versatile resistance options Size and portability: Lightweight and easy to transport and store for use at home, office or on the go Material: Lightweight construction for simple handling and storage Performance: Strong traction capability with adaptability to different strength training needs