Wotofo newly released the long awaited enlarged edition of the original Serpent Mini, called Serpent Mini 25, which remains many good features while improving upon the original one with a larger diameter-25mm. Featuring a threaded top fill design to conveniently fill the 4.5ml tank capacity, Serpent Mini 25mm RTA is designed for both single and dual coil configurations and utilizes a knurled wick control ring to keep your wicks in place. Ample airflow is provided with the large 4mm internal airhole, directly below the single coil configurations for direct-to-coil air channel. It adopts PEEK Insulator made in Germany and gold plated 510 connection, which ensure it more durable for daily use. Plus, this improved edition will definitely bring you a very easy building experience. Serpent Mini 25 comes with 1 x Wotofo Serpent Mini Single coil RTA 1 x Wotofo Serpent Mini dual coil deck 1 x Spare Part and Hex Key Pack 1 x Japanese Organic Cotton 1 x Pack of Wotofo Comp Wire 1 x Additional Glass Tank Section More info, please visit: http://www.heavengifts.com/WOTOFO-SERPENT-MINI-25-RTA-SS.html http://www.heavengifts.com/WOTOFO-SERPENT-MINI-25-RTA-Black.html Don’t forget to use "AHGEVAPE" code to get an extra 8% off discount.