Aspire Revvo 24MM Sub-Ohm Tank slams a home run with tank options, featuring a triple set of adjustable airflow slots located at the top of the device for a leak-proof seal. Refills are quick and easy, thanks to the topfil spring-loaded design of the tank. And the designers of this tank weren??????t happy to settle with average, so they crafted an ARC (Aspire Radial Coil) Coil system, allowing for the implementation of mesh wires over a larger surface area. While this may all seem very technical, you can definitely feel the effects of this new system with enhanced vapor production and increased flavor throughout each and every puff. Each ARC coil can be replaced with the included ARC Mounting Screw, and has a range rating from 0.1 ohm and 0.16 ohm, meaning you should stick with a wattage anywhere from 50-100W for optimal results. Enjoy a smooth clean vaping experience with the Aspire Revvo 24MM Sub-Ohm Tank! Aspire Revvo 24mm Sub-Ohm Tank Tech Specs 24mm Diameter 3.6mL Maximum Juice Capacity High-Quality Stainless Steel Construction Pyrex Glass Reinforcement Metal Protective Sleeve ARC Coil System – Aspire Radial Coil 0.10-0.16ohm ARC Coil – rated for 50-100W Horizontal Orientation Increased Coil Surface Area – Greater Flavor and Vapor ARC Mounting Screw – Spit-Back Protection Spring-Loaded Filling Tube Top-Fill Method Triple Top Airflow Slots – Fully Adjustable 10.5mm by 2.5 Each Airslots Sloped Delrin Widebore Drip Tip 510 Connection Package Contents 1 Revvo Sub-Ohm Tank 2 ARC Coils 1 Spare Glass Tube 1 Protective Silicone Cap Set of O-Rings Instructional Manual WARNING: This is an advanced user item. Use at your own risk! Please ensure that proper precautions are taken when using such devices. There is an inherent risk with the use of any and all rechargeable batteries in any circumstance. Please read and make sure you understand the users manual before use. The wattage range listed above is what is recommended by the manufacturer, you should stay within these ranges to ensure optimal device functionality flavor and protection.