cup coaster,custom metal coaster,tea cup coaster 1.Material: zinc alloy 2.Size:80mm 3.Logo,Design customized OEM/ODM is ok Specification Materialsoft pvc/metal/leatherSize100mm in diameter or customizedTechnicsInject printing ,frosted ,matt ,embossing ,barcode ,signature panel ,scratch panel etc.ColorMulti-color is availableLogoplease kindly send us your logo artwork. logo can be 3D&2DUsageClub, ...