Chest Expander includes fully adjustable resistance that moves the intensity up or down – for custom exercise of back, chest and arms. – Security clips lock the bands to handles for a secure, rock-solid connection and contoured, ergonomic handles provide a comfy grip. – Chest expander is the portable upper-body workout to do at any time, everywhere, to build that impressive chest that every workout fan wants. Chest Expander includes fully adjustable resistance that – 5 Spring Chest Expander, features easy to grip handles and 5 springs. – Different way to exercise with Chest Expander. – Overhead pull down helps broaden upper back. – Pull behind back helps build arms and holders, holdout stretch to sides helps strengthen upper back and arms. – Springs can be removed to reduce the intensity of tension. inkfrog terapeak inkFrog Analytics.