Ceramic Fireproof Skulls, Bones and Mini Skull sets are a fun, creative, and easy way to liven up your fire pit or fireplace, especially around Halloween. Our ceramic fire decor is made from the same refractory material used for faux fireplace logs and can withstand scorching temperatures. The skull heads and bones are safe to use indoors and out and do not produce any toxins or harmful chemicals making them safe to enjoy with friends and family.