rimfire

Can anybody tell me what the coils that come with the Rimfire are made of? They look like some fused claptons or staples or something. I can't seem to find what they're made of. I want to try out TC on my Naboo, but don't know which setting I would need to use. I've got a couple kanthal aliens...

Product introduction RimFire RTA, with 30mm diameter, the first RTA released by Voopoo, is designed with user-friendly and highly-detachable structure. The Voopoo RimFire utilizes dual full-wrapping airflow system. Air goes down directly from top to coils and travels through two side cavities...