Expander Set (3 Pieces)

100% Guarantee, High Quality 5 Springs, You Could Remove Any One Spring to Adjust a Comfortable Tension.
Chest Expander & Hand Gripper 2 in 1 Both of Hand Grip to Training Chest Pulling Exerciser.
Multi-Function Design, Strengthen Hand, Finger, Wrist, Forearm, Developing Chest and Shoulder Muscles.

[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