Natural Latex Rubber Band Rubber Hose for Catapult Surgical Tube Elastic Parts 6 x 9 mm

[Safety micro-rebound]This Arm Exerciser Hydraulic Power Twister uses micro-rebound technology instead of violent rebound. It is safer to use and can avoid hurting yourself due to violent rebound during exercise.
[20-200kg adjustable strength training] Upper body strength training equipment that can adjust the resistance, the adjustment range is 20-200kg, which can meet your strength training needs at different stages. This is the biggest disadvantage of the old spring arm. You can focus on muscle training from start to finish. Whether you are a beginner or an advanced user, this is a muscle training arm that you can easily choose.
[Safety in use] There is a buckle at the bottom of the handle. When opening the package, please hold the handle with both hands and use your thumb to remove the buckle before use. After training, close the handle with both hands and fix the handle with a buckle, which is convenient for storage and saves space.the handles of this tool are made with PU soft rubber to guarantee a slip-resistant and comfortable grip

Quiet Fitness Tool — The spring tensioner for fitness can provide maximum flexion for the chest, shoulders and arms. Quiet tool, allows you to exercise without disturbing other people, good weight training fitness equipment.
Home Training — The Chest Expander Upper Body Puller is specially strengthen your chest, arms and shoulders.Wonderful chest developer for home training
Long-lasting Elasticity — The fitness chest expander is made of high-quality material, with long-lasting elasticity. These enhanced springs provide strength and long-lasting resistance, and will deeply stimulate your muscles when you compress them while using the device.