This is a pack of 18 97mm tiles 3of each of these bright vibrant colours, as this is what will fit in my smaller box. Red, orange , yellow, light green , dark green, blue. I have shown them cut with my rubi tile cutter. They are harder than normal wall tiles . Smash them with a hammer if you like for your mosaics . They are 5mm thick. The colours are available separately let me know how many you would like of each and I'll list them for you.