... absorption and good acid resistancew OEM sizes are available Creative slate keyring:with different shapes, like round, square ... square/oval/round/flower shaped/heart shaped etcOther main products:slate tray,placemat,coaster,billiard slate,building slate, ... slate clock, egg holder, wine label and other creative slate products sizeas you suggestmodeXM0043certificateCE / EUedgerough-edge or cut edgecustom ...