Nắp bình chứa Welflos M

It snaps on with a satisfying click and stays put, so I’ve stopped worrying about the reservoir gathering dust between uses. The cover is light but feels sturdy, and it’s nice to know the tank is sealed off even when I store the flosser in a drawer.

The fit is snug enough that dust doesn’t sneak past the edges, which was my biggest worry. My reservoir stays clean between uses now, and the cover pops on in seconds without any wrestling.

I was a bit unsure if the cover would stay on, but it snaps over the reservoir opening with a satisfying click and keeps everything free of dust between uses. It's a simple, no-fuss solution that does exactly what it promises.