One of a kind and so unique CAST glass ART tile signed DSprague This is a HUGE tile for your use in home tile projects or I can add a hanger on the back ready for hanging. This is a process of Glass fusion. I've used two layers of glass and melted the glass at a high tempurature until it becomes fluid and added it to one of my custom made molds to produce the 3D image of the fish casting. Once it has been properly annealed in a kiln the Glass fish is removed from the mold. ONE of a kind and so unique!