Our Wide SlabMat is a 30x50 sheet. SlabMat is the smooth alternative to canvas. The non-woven surface is ideal for working on clay. SlabMats can be used as a handbuilding mat, or run through a slab roller. Measure your slab roller to make sure this size fits.This is ONE sheet; for use with a slab roller we suggest purchasing two. SlabMat can also be customized in your studio with a blade and straight edge, cut to your desired size.