Monkey Fragrance Lamp Oil Wax Warmer Burner Electric Polyresin NIghtlight Set This oil warmer features 3 monkeys sitting on a tree branch. Hear no evil, speak no evil, hear no evil. Made of polyresin. Oil warmer / burner. Aroma / fragrance lamp. The glass dish holds fragrance oil or wax (glass dish and a fragrance sample of oil or wax is included).