forcetracker is a professional forcetracker with an accuracy of more than 95. It can accurately measure the boxing force and speed of boxers. Before using it, you need a vertical or hanging regular cylindrical punching bag. The filler cannot be water and sand, and the weight is more than 15kg, How to install: each forcetracker be equipped with a Nylon Sticker. The vertical punching bag is installed at the top of the punching bag, and the hanging punching bag is installed at the bottom of the punching bag. The dynamometer needs to be installed horizontally in the middle. After installation, enter your punching bag parameters in the wechat applet or app, and then you can start the test working principle:Force interaction, how much force you give the punch Color: Black Material: plastic Package Contents: 1 * Boxing Dynamometer Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.