Translated: Hanging large boxing bag Hook Uppercut 4080501 from the company Olympus Sport. Bags of this type are the classic cylindrical bags that hang from the ceiling and are designed to withstand many impacts. Training with such a bag aims to improve the user's technique. They are also suitable for kick training. However, they should be hung from a sturdy point. The bag is delivered empty, so you can fill it with the material of your choice. Usually, bags are filled with the following materials: sand, water, air, and fabric. Each material has different properties and uses. Water is recommended for large bags as it provides the necessary weight and makes the impact quite realistic. Sand, perhaps the most common material in large bags, is recommended for users who want the bag to have maximum weight. Fabric is also used in large bags and helps reduce the pressure on the shoulders and joints every time you hit the bag. In some cases, you will find fabric and sand combined to combine the advantages of both materials.