cork coaster 1.Material: wood 2.We sell this cork coaster to USA walmart 3.SGS,BV cork coaster Descpription:1, Material: high density quality cork coaster with very clear surface logo 2, Processing: usd customized shape mould machine to do the cork coaster 3, Color: Pantone color as your design4, Features: Eco-friendly, highly quality, fast delivery, best price, etc.5, Size: all you custom size, ...