BUILD YOUR MUSCLE WITH BODY BUILDER, WE ASSURED THE QUALITY AND DESIGN FIT IN YOUR REQUIREMENT IN YOUR DAILY EXERCISE. Features: ABS project plastic handle has anti-slip function for excellent grip. Fantastic gift fit for your partner or friends. Fit for exercising your wrist, forearms, chest, arms and shoulders. Thickening the wal of the tube, it is difficult to deform. Specification: Main length : 59CM Spring Diameter: 3.5CM Spring length: 24CM Handle Length: 10CM Color: Black Material: Spring Steel & ABS handle Package Included: 1X Power Twister Bar