Home » Fine Pronto Prep Disc Pads Fine Pronto Prep Disc Pads Specifications Non-woven material impregnated with aluminum oxide grain 2-ply cloth construction Threaded male hub Durable, resists loading Good for flat or contoured surfaces and hard to reach areas Description 2" Fine Prep Disc Pads 3" Fine Prep Disc Pads Item Number BB2F BB3F