This is a three pack of replacement double coil ceramic atomizers for use with the Source Orb 4, Orb XL or Nail vaporizers. It is available in white or black ceramic. The White Ceramic atomizer features 2" rods and is designed more use with smaller amounts of concentrates. The ceramic construction provides longer heat retention than other materials. Newly released, the Black Ceramic double coil atomizer features a pair of 3" dark ceramic rods. The porous nature of the material allows for a high absorption rate and results in larger clouds even after a few hits.