The OMEKA 510 Thread Adapter is designed for SMOK RPM Pod System Vape Kit, it can switch your SMOK RPM Pod Mod to a normal 40W Pod Mod which can be fitted to any 510 thread atomizer that provide more choice for you. The OMEKA 510 Thread Adapter is made of POM (Outer Housing) and Brass & Gold Plating (510 Threading Connector). As for this 510 threading connector, it comes with a special Spring-Loaded 510 Center Pin design that can be fitted for 510 drip tip with different lengths.