The very soft compression foam backing can provide protection and shock absorption, so you don't have to worry about injury during exercise or running.
There are 12 sandbags that can hold sand or steel (exclude sand or steel ), and the required load can be adjusted at any time. The maximum load is 110lbs(when loading metal blocks ).
When doing strength training, you should increase the weight. When doing aerobic exercise, the weight should not be too large. You can adjust it at any time according to your needs. If you have any questions, you can contact us. We will try our best to provide you with the best good service.