グラデュエイトまたはファンネル洗浄ブラシ

I was tired of trying to reach the bottom of my 1,000 ml graduates with smaller sponges, but this brush's length and stiff bristles make scrubbing them effortless. The hanging hole in the handle is a simple touch, but it keeps things tidy in my drying rack.

The hog bristles are stiff enough to scrub stubborn residue inside my 1,000 ml graduated cylinder, yet they don't scratch the glass. I like the hole for hanging it up to dry after each use.

The hog bristles are stiff enough to scrub dried residue off my 500 ml beakers without scratching them, and the hole for hanging keeps it handy by the sink.