Puffco ceramic chambers are custom-designed to deliver the biggest and cleanest puffs around. The extra-large size chamber allows our customers to load the right amount for their needs, while our custom ceramic based heating element delivers the purest vapor and the easiest clean-up in the industry. * Please note that this is a replacement coil for the older style Pro Pen and is Not compatible with the Puffco Plus. Puffco Pro Coil Features: Use: Concentrates Compatible with Puffco Pro Easy to Clean Coil is Made of Ceramic Not Compatible with Puffco Plus What's in the Box: 1x - Pro Replacement Coil by Puffco