punching bag
A punching bag can serve as an important piece of erect fitness equipment, with purposes covering training for combat sports, emotional venting and only general physical improvement. The modern punching bag, a seasoned training aid, is often made from advanced materials and designed according to more ergonomic principles--which ensures longer life. As a rule, these bags consist of a heavy-duty leather or simulated outer shell, filled with a combination of textiles, foam and sometimes sand or sawdust so as to give the right level of resistance. Each type of punching bag serves specific training purposes so they come in weights and sizes from tiny speed bags just a few pounds big right up to heavy bags weighing over 100 pounds. They are normally hung by heavy-duty steel chains (often galvanized) or straps using professional-grade mounting hardware so that they will not sway during strenuous workouts. In the most advanced punching bags, a patented shock absorption system is built in, guaranteeing the equipment makes less noise and is protected from damage as damage to the structure. The service coating is so tough that it can withstand literally thousands of blows yet keep its shape and structure; this makes it a valuable aid for both professionals and amateurs who want to develop their striking technique, power and cardiovascular endurance.