Description
Spring folding handlebar, or spring expander, is a steel with a traction spring in the center and two handles covered in rubber or plastic at the ends. easy to carry tool as it has short length..Very useful to training your biceps, some of the exercises that we will see are at least as effective as those performed with expensive and bulky machines commonly found in the gym..Exercise abdominal muscles, pectoral muscles, arm muscles, biceps..High-density webbing safety rope cover, comfortable and safe, ABS engineering plastic handle..pull, grip the by the handles, lift it above the heads and then bend the elbows so as to bring the tool behind the head. Bring the elbows in front of you, join the ends of the together so that they meet behind the head. Hold for three seconds
