This tends to make swapping hook and loop sandpaper discs rapid and easy, to stop downtime. Remember to Notice, When your sander doesn't have a appropriate hook & loop backing, a backing pad is necessary for use, which we sell separately. There's two types of conveyor sortation determined by throughput: https://www.hukums.com/products/stanley-sxwt-ms573-sp-plywood-moving-dolly-with-200-kg-capacity