MRN Modz Kalayaan (21700) Series Mech ModUpdate 5/23/23 - ARRIVED! In stock and shipping. Dimensions:  30mm x 54mm x 98mm Full Mechanical Series  Requires (2) 21700 Batteries (Not included)  All copper contacts Reverse Threaded adjustable 510 Pin Deep Engraving Fits a 30mm Atomizer with no overhang Serialized Limited production GET THE NEW MRN RDA HERE: >>> Katutubo RDA 30mm By MRN Modz ADVANCED USERS ONLY - This is a mechanical device which is only suited for users with advanced knowledge of coils, builds, and ohms law.