I cut the unused portion of glass for fusing. URF81-00 Expansion coefficient 90 Thickness: Approximately 2mm Approximately 8cm x 20cm 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 the only item available, returns and exchanges are not accepted. Thank you for your understanding. #stainedglass #coloredglass #fusing