These small squares of glass are strong as well as beautiful. Each square measures 12mm square and 4mm thick with a flat top.
They can be used indoors and outdoors.
Picture does not do tiles justice. Any visible marks are glare from the camera lens. I take my photographs as true to actual color as possible. However, computer monitors vary widely, and the same image may not appear identical from one monitor to the next. Please take note of tile size. Pictures may show tiles larger than they actually are.