Device for forming weals in hands during sports event, has cylindrical body comprising friction surface for provoking non-abnormal weals, and holding device provided at arms and fixing cylindrical body in hand

摘要

The device has a cylindrical body comprising a friction surface for provoking non-abnormal weals, and a holding device provided at arms and fixing the cylindrical body in a hand. The cylindrical body and elastic and flexible surfaces are exchanged to allow different addiction stages during a forming process of the weals. The cylindrical body or the frictional surface draws defined torque by a brake or grid to allow the addiction stages during training.