Bristle
type erasers make the best marker board erasers because they are self
cleaning. Regular felt type chalkboard erasers build up with residue
very quickly and cannot be cleaned resulting in dirty, smudged boards. The
bristle type erasers are self cleaning and can be cleaned with warm, soapy
water if needed. We offer two styles. The PR-101 is just a regular
bristle type eraser that can sit on a marker tray and the PR-102 has a
magnetic in it's backing so that it will stick to a magnetic board or any
steel surface.