1.cork beer coaster with PVC surface 2.squre 90x90mm,custom size 3. ... 4.eco-friendly Product descriptionlogo printed promotional cork coaster ,beer mat, drink coaster,beer coaster,printing coaster 1) size : 9x9cm , custom size ... with SGS test and ROHs standard6) heat resisting and protect table or desk surface from damaged possibly by hot cup7) ideal ...