Realistic Appearance: Made of superior ceramic fiber, the wood log will be more realistic in the fire. It will be the great promotion to your electric, gas, propane, vent less, vented, fireplace or fire pit. Free Combination: The ceramic wood kit is designed into 4 different shapes from 2” to 9” that allows you to combine it freely and will never leave your fireplace look bare. Material: Light weight ceramic fiber is able to withstand the temperature of 1000 degree without scratch or harm the fireplace surface. There will also be no ash, poison gas or residue.