Floating pin (spring joint) on atomizer connector to fit with almost all 510 threading battery (+&- 2mm) Disassemble into 5 parts for easy maintenance for the vaper. Revolutionary design on wide mouth tip to collect and trap all condensed liquid to prevent it back flowing into the vapers mouth. Eco-friendly product (No soldering & no welding) Convenient liquid refill system (screw off the top cap and refill! No mess!) High durability of infrangible clear body and metallic assembling parts Gorgeous design with high glossy chrome coating Tank capacity: 1.1ml (safe lind) - 1.6ml (maximum) Ultimate 1453 features newly designed wide drip tip is now compatible with the 510 thread!