I bought one of those gigantic shiney white ones at a quilt festival --it is same size as the top of my 'banquet table' cutting table. it's ok, but it dulls my blades much faster--and i've heard the same complaint from others (after I bought mine, of course.) They have a surface sort of like PVC--and they do get cuts in them. So I do keep it on the table for quick measurement of large pieces, and it looks clean, but then place my good old smaller greenies (olfas, i think) on top of it for doing actual cutting. My conclusion: don't spend your money on those big shiney white ones! :XD: