You will get 170 pcs round microwave kiln ,quantity can meet your use and can share with your family and friends. ceramic kiln are made of ceramic fiber, has good insulation effect. 170pack. Each ceramic fiber paper gaskets measures about 4.7inch, Please confirm the size of the product before purchasing. Put the kiln paper in the kiln, then put the hot-melt glass on the kiln paper, and finally cover the kiln cover to start meltin. Prevents glass from sticking to the base of the microwave time use. ceramic-impregnated shelf paper that provides excellent separation between glass and kiln shelf.tips: for a perfectly smooth bottom on , should be used with a piece of thinfire paper between the fibre paper. This product can better solve the troubles in the handmade process to stimulate your interest in and create the handicrafts. Color: White Material: Ceramic fiber Package Contents: 170 pcs x microwave kiln Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.