Specification:
Product Name: 40KG Arm Rod Spring Exerciser
Weight: 1540g
Material: plastic， stainless steel spring
Color: black

How To Use:
1.Standing feet apart， around the elbow bent， hands bent spring.
2.Arms straight up， bending the spring， and then gradually relax， repeat several times.
3.Arms forward bending of the spring， and then gradually relax.
4.Body bent down， his arms bent spring.
5.Arms behind clenched spring， then down straight gradually bending the spring，

Features:
Dual-spring design is not easy deformation， prevent sliding injuries design.
Insist to take exercise， strong and handsome effect will be remarkable.

Note:
Please use it away from the crowd 2 metres.
After a long time use the biceps device，if you find crack on the device ，please stop use it for your safe.

Package Included:
1 x 40KG Arm Rod Spring Exerciser