A limited production item, Grenco Science™ introduces the Mayhem Festival | Gunmetal G Pen™. Complete with collaboration engravings throughout, this exquisite vaporizer features a gunmetal exterior and arrives within a special-edition G Leather Travel Case™. Contents Include: 1 Special Edition G Pen Travel Case 1 Rechargeable G Pen Battery™ 1 Glass G Tank ™ 1 G Pen Wireless USB Charger™ 1 microG Tool™ * Not compatible for use with dried herbs. * Electronic components are backed with a 1-year warranty. * The Glass G Tank™ has a durability index of approximately 5-6 weeks depending on user frequency.