Made of ceramic fiber cotton, it does not contain glue, it is strong when burning, and can be reused many times When you see the tweezers used in a tabletop pit, you feel that you need to remove the wool-core sponge blanket to change color, stain or shorten the burn time or remove it The ceramic wool core can bear temperatures up to about 2900 degrees Celsius (1600 degrees Celsius), can be used for a long time with alcohol pit, no odor, high temperature, and insulated Our ceramic fiber wool has good alcohol adsorption to avoid the trouble caused by accidentally knocking Easy to carry and ready to use. Works well with various indoor tabletop pits