These 7/8" diameter plastic backed X-Fine grit sand discs are manufactured with the grit resin-bonded onto one side of thin, plastic discs. More water resistant then paper backed discs. These discs have the Moore Snap-on brass center so they need to be used with a Snap-on mandrel (see 840-3200, sold separately).
Plastic backing with one cutting face.
Sold in packages of 200 discs.