Old Spectrum stained glass sheet. The surface has fine irregularities, it's Rough Roll (RR). This glass is easy to use and perfect for panel making and art projects. Color: Yellow, Transparent Surface: RR Rough Roll Size: Approximately 20cm x 22cm *The color in the photos may differ slightly from the actual product depending on your viewing environment. *Stored for a long time at home. *If you purchase two pieces (two sheets) together, we will discount 300 yen for shipping and the box fee.