Product Contents: You will receive microwave kiln , sufficient quantity can meet your use and DIY needs, also can share with your family and friends. Product Material: These ceramic kiln are made of ceramic fiber, which is reliable in quality, has good insulation effect, and can be cut arbitrarily. Note: The product can only be used once. Product Size: Each ceramic fiber paper gaskets measures about 4.7 x 4.7 inches/12 x 12cm and the thick measuring 1 mm/0.04 inches. Please confirm the size before purchasing. Product Function: Our microwave kiln have a good insulating effect, which can prevent the glass from sticking to the bottom of the microwave kiln, smooth the melt on the back, reduce the generation of adhesive burnt smell, and make more delicate projects. When using, just put the hot melt glass on the kiln paper, put it into the kiln, and cover the kiln cover. Wide Application: These microwave kiln can be used in the creation of hot-melt glass products, DIY jewelry pendants, beads, decorations, models, etc., to stimulate your interest in hand-made and create the best handicrafts. Colour:White Material:Ceramic fiber Package Contents: 150 x ceramic 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.