Did you know? "Sandbags" don't just contain sand.

When it comes to "punch bags", whether they are used for training, boxing , or for kicking and punching in the gym, many people may think that the bag must be filled with sand. But in fact, "sand" may be just one option! Although sand is heavy and readily available, when used on a boxing bag, it tends to be heavy and dense at the bottom, making it too hard and dense, risking hand, joint or leg injuries, and causing the bag to deform quickly. สล็อตเว็บตรง