HIGH QUALITY MATERIAL: The Adjustable Breast Extender Puller is made of highly elastic TPR rubber and high quality plastic, is strong and durable, not easy to deform and not easy to rust. Unique design: The design with curved handle fits the palm and lies comfortably in the hand. The design of the deer antler buckle can firmly connect the handle and rubber hose together and not fall off easily. Adjustable Voltage: The adjustable breast expander can adjust the voltage freely. 5 Tube Expander pull about 90 Pounds, 3 Tube Expander pull about 45 Pounds, 1 Tube Expander pull about 18 Pounds, which can satisfy different groups of people. Easy to carry: The chest muscle trainer is lightweight, compact and lightweight. It can be folded, easy to carry and stow away and can be trained at home or in the office to stay healthy. Widely used: 5-tube breast expanders train your arms, chest, shoulders, back and entire upper body for fitness, athletics and bodybuilding, suitable for all fitness men and women. Product Product specification: Product type: Fitness Chest Extender Material: TPR rubber and plastic Color: Black Quantity: 1 Piece Functionality: The adjustable breast extractor is made of natural latex, which is more durable than steel and normal rubber. High durability for long use. The sports belt can fulfill different workouts. The non-slip technical handles can prevent your hand from falling off the weight system. Strengthen your chest muscles, latissimus dorsi, shoulders, triceps and your body muscles in general. Rubber bands can be easily added or removed with a sudden action. Lightweight, good for travel and storage, office, gym, camping or travel, exercise anywhere and anytime.