Name :shell mosaic tile Surface material:Blacklip shell and river shell Back material :ceramic ,plywood ,MDF ,etc. Chip size :15x30mm ,Do customized . Unit size :Basically,300x300mm ,bust also do customized . Color :White and black Thickness for the shell part:1.5mm Unit thickness :7mm(depends on the back material you want ) In order toprotect our earth ,lower the carbon ,please,my dearest client ,supply me those information that we can save a lot of emails in discussion : 1,Choose this photo (Direct for us to know we are talking the same thing !) 2,Exact size of the shell chips 3,Exact back material 4,Quantity you want (I will give you a surprising price!) At last ,i'm waiting hear for you with my respect!