Sedulus ビスコーススポンジ 黒板拭き用

This thing really holds onto water without dripping everywhere, which makes wiping down the board fast and even. I like how the 60mm thickness gives you a solid grip while you work.

I've been using this sponge for a few weeks now, and it picks up chalk dust way better than the cheap ones I used before. The fine pores really do make a difference when damp cleaning.

The 60mm thickness gives great grip, and it holds just enough water to wipe the whole board without dripping. Fine pores really do make a difference for a clean, streak-free finish.