• Chest spring bent bend spring hand wrist wing shoulder arm chest muscle enhancement exercise sports equipment Complete your exercise equipment at home with bend. Black stainless steel antiburst black spring system. Bending, which works with spring resistance, is especially helpful in developing the upper arm,wing and rib cage. The bend 60 kg power curl, which is very simple to use, is 59 cm long and moderately hard. Take the first step in regular exercise by bringing movement to your daily life with Bükbük. Package Included: 1 x Curved Chest Spring