Product details:

The Python Power Twister is a torsion spring exercise device. The Python allows users to train with multiple resistances by moving their hands closer or further away on the rubber grip handles. Strengthen and tone the chest, shoulders, back and arms. Features high-grade steel construction for strength and durability. Molded rubber grips provide security and comfort. Durable nylon wrist straps help prevent injury. The Python is a portable exercise device that is great for home, office or travel use. Want even more difficulty Add the Fit Grips by Core Prodigy to the Python handles and you will have an extreme Power Twister.