I cut the unused portion of fusing glass. Striker Red The color will change after firing. BUF1122-30, Coefficient of Expansion 90 Approximately 8cm x 20cm The glass is in its cut state. Please handle with care. There may be bubbles or distortions, but this is not a defect. The color on the screen may differ slightly from the actual color, but as this is the only item available, returns and exchanges are not accepted. Thank you for your understanding. #stainedglass #coloredglass #fusing