This is a glass kiln for fusing glass together in a standard microwave. I have made many glass jewelry items in this fusion kiln using a microwave. The kiln is made from a fireproof substance and is lined inside. You can check several great You-Tube videos on how to do this. This is so much cheaper than buying an electric or glass kiln for fusing glass. Included are all of the supplies and over $100 of glass pieces. It's been several years since I used this so it is time to let this go. I am in the Timberlake area. My cell is 434-818-three-six-eight-nine.