... : Screen Printing Feature: Water absorption, Not-toxic, recyclable. Felt Coaster Material: Felt with certificates.Standard size: (Side length) 10 x (THK) 3mm, ... Printing, up to 6cololors. Can do customized logo on the coaster. Elegant, classic and fashion designs Standard colors of matial: ... and nice touch feeling, Water absorption, Not-toxic, recyclable. Felt Coaster, OEM Felt Back Coaster,