I created this because I would accidentally step on the knobs during live performances and studio rehearsals, even though I had switch covers installed. Now I can step on them without worry. There are also advantages such as preventing knobs from being bumped inside the effector case and making it easier to check the LED lamps. Due to variations, it may be slightly tight in some cases. The product may have burrs, layer marks, stringing, chips, and traces of support material removal. Please be aware of this. It will be shipped in simple packaging. Please purchase after you are satisfied to avoid any problems. If you have no questions, you can buy it immediately. Thank you. #BOSS #Effecter