Even though my hands are wet with water, I think switching is easy and very convenient. Easy to install and clumsy, even I could be installed in a moment. Several other parts are necessary, but I think that everything will be aligned with Monotaro. There is no burden on the pressure to step on just by placing a foot, it is stress free, and I think that the sound is not at a level that does not matter without a silencer. I will continue to feel that I will repurchase surely when expanding facilities.