EQUIPMENT FOR IMPROVING PHYSICAL FITNESS

摘要

The invention discloses an equipment for improving physical fitness, whose primary aspect is muscle strengthening. Another objective of the invention, besides maximizing muscle development, is to minimize the risk of injury during and after practices. The invention has a comfortable, tailor-made design shell (1), filled with filling material. The shell (1) of the filler can be filled or emptied during exercises (in-situ method). The shell (1) does not have any strips or handles on its outer surface. The shell (1) size is designed in a way that its size matches the shoulder width of the user. In addition, the device is equipped with a scale (3), which indicates the charge status.