SILARUKOV 25 mm Hammer for wrist / forearm training with spring collar

This adjustable hammer trainer is used for building strength in your wrists and forearms. Put 1.25, 2.5 or even 5 kg of plates and do movements with your hands before you, left ad rigth, forward and backward. You can also rotate the hammer before you in different directions and make eights in the air. 

Comes with a collar. Plates are bought seperately.