Expansion coefficient 96 Spectrum Approximately 8cm x 20cm, thickness approximately 2mm The clear glass on the left is iridescent. This is a portion of glass left over from glass fusing. The color tone may change after fusing. The glass is in its cut state. Please handle with care. There may be bubbles and distortions, but this is not a defect. The color on the screen may differ slightly from the actual color, but as this is a single item, returns and exchanges are not accepted. Thank you for your understanding. How about using it for making stained glass accessories, or when you need a small size? #stainedglass #coloredglass #fusing