A ceramic-impregnated shelf paper that provides excellent separation between glass and kiln shelf. Creates less binder burnout odor, and produces a glossier finish on the shelf side of your project. Use thin shelf paper instead of shelf wash for an ultra smooth finish on the back of your fused piece. For a perfectly smooth bottom on your glass, should be used with a piece of thinfire paper between the fibre paper and your glass. Prevents glass from sticking to the base of the microwave kiln.one time use. Specification: Material: Glass Fiber Color: White Size Chart: Size: Approx. 210 x 297 x 1 mm / 8.27 x 11.69 x 0.04 inch Package Includes: 10 Pieces Glass Fusing Papers Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.