Crystal glass mosaic tiles are colourful and a beautiful tile to mosaic with. This tile is made from moulded clear glass which means that it has rounded soft edges and a completely flat face. The colour is fused to be the bottom of the tile which creates a lovely depth to the tile. Each packet contains 100 gm's (approximately 26 tiles) and is 20 x 20mm square and 4 mm thick (the same thickness as a standard glass tile).