The Wulf Mods Type-B Dome Kit is a durable glass and titanium tank cartridge. It has a ceramic atomizer, an quick heat up time, and is 510 threaded. Features- 510 threading 2 piece heating chamber Glass cover Titanium and ceramic components 5-second heat up time Specifications- The Wulf Mods Type-B Dome Kit measures 2 3/8” x ½” inches. What is included with the Type-B Dome Kit?- 1x Wulf Mods Type-B Dome Kit 1x extra atomizer Warranty- Wulf Mod features a one year replacement manufacturer’s warranty, restricted to normal use, while the battery comes with a 90 day warranty. What materials are compatible with the Type-B Dome Kit?- The Wulf Mods Type-B Dome Kit is compatible with concentrated essential oils.