The Vindicator 21 (25mm) Cobblestone Kit By Kennedy EnterprisesThe Vindicator By Kennedy Enterprises is a 21700/20700 Battery mechanical mod, it features a hybrid top cap which allows a direct connection to your battery. This direct contact provides one the lowest voltage drop of any mech mod on the market. Kennedy products are MADE IN THE USA and backed by a lifetime warranty!From one of the most well-known mech mod makers in the world...This is the Cobblestones edition of the Vindicator 21! Featuring an intricate cobblestone like pattern that is lightweight in the hand and has an interesting texture. Also includes a Kennedy 25mm SS (Stainless Steel) RDA.  Kennedy Cobblestones Mod Features:21700/20700 Battery Mod (battery not included)25mm Outer DiameterHolds 21700 and 20700 batteriesCobblestone Edition - Awesome cobblestone patternDragon button Two position full Copper switch for maximum conductivityConstant Contact button Large vents for safetyKennedy 25mm RDA Features:25mm Outer DiameterMultiple Post Options (Coming Soon)Swappable PostSmoother Airflow303 Stainless SteelVelocity Style Two Post DeckLarger Build DeckLarger Air ChamberLarger Juice WellNo Leaking in HybridsFits Most Box Mods510 ThreadingIncludes:1x Kennedy Cobblestones Mod (Vindicator 21/Cobblestones Edition) 1x Kennedy 25mm RDA (Stainless Steel)1x Bag of spares (O-Rings, Allen wrench, post screws)NOTE: Please thoroughly clean the RDA before usage, as machine oil may still be present. ADVANCED USERS ONLY - This is a mechanical device which is only suited for users with advanced knowledge of coils, builds, and ohms law.