Just like the brand name cleaning erasers (cleaning sponges) in the store. These are great for cleaning your project up. They remove graphite and grease pencil lines as well as buffing compound and finger smudges. Unlike a standard pencil-type eraser get these a little wet for best performance.
Posted by Unknown on 12th Apr 2017
Too brittle, Doesn't last for more than a few applications.
These are designed to be used wet. They don't have to be soaking wet but they work best wet and hold up the longest that way. The only time we've personally encountered them being brittle is when used dry here in the shop.
All prices are in USD.