The 22mm diameter of Spirals tank compatibles with most mini mods. And the built-in large size coil head adopts Japan imported cotton, brand new coil and precise wicking hole. Joined by adjustable small size air slots and elongated drip tip, all that makes it to be a taste whirlwind that offers you authentic, powerful and charming taste. Yes, it is the Spirals tank that brings your impressive experience. The 24.5mm Spirals Plus Tank is bigger than Spirals tank, which is the newest great design 4ml sub ohm from SMOK. It offers you with more clouds and deep taste. The SMOK Spirals Flavor Sub-Ohm Tank is a compact atomizer system creatively designed for flavor-enhanced output that utilizes the enlarged Spirals Coil Structure. The SMOK Spirals Plus Sub-Ohm Tank is the follow-up to the flavor-orientated Spirals Tank, enlarging the chassis to 24.5mm with 4mL of juice capacity while heralding the performance capability of the Spirals Coil Structure.