With the DYNO HOLD resin pocket, no more bags and magnesium bottles lying around on the floor to bee stepped on regularly. No more brushes falling out of your back pocket. This pocket is used to store all these accessories at the bottom of the block or the route so that you don't have to carry them around. It's also a real climbing hold with extra screws to prevent rotation. It can be used as a start or end of a route for example.