Old Spectrum System 96 glass fusing sheets. This is an 8-color set of glass from the Spirit Series and Opal Art Series. OGT continues to carry these series, but they seem to be difficult to obtain, making this a valuable set. It can be used as regular stained glass for panel making and art projects. Colors: 8 colors, transparent and opaque Surface: S Smooth Size: Approximately 27cm x 30cm total Coefficient of Expansion: 96 *The colors in the photos may differ slightly from the actual product depending on your viewing environment. *Stored for a long period of time at home. *This item is not eligible for combined purchase of two items.