These sanding blocks are made from a flexible foam which is reusable, washable & durable.
Suitable for wet or dry sanding and for sanding any surface.
Each Block is DUAL Grade - either Fine & Medium or Medium & Coarse.
Fine & Medium Grade are suitable for sanding between coats of paint and light to moderate distressing.
Medium & Coarse is suitable for moderate to heavy distressing and prep (scruff) sanding.