Since I bought the YDS-120, I've been concerned about it and made various DIY solutions. I finally made something I'm happy with. It solves the problem of accidentally getting sheet music wet or noticing it's wet when you look down. I use it by folding a tissue and putting it inside. Spit stopper, 2nd generation, improved the first model, increasing the contact area. Achieved improved fixing power. Fits the loose, square cone shape of the YDS-120. Thank you for watching.