These magnetic rings are designed to be used with either the Uni or the Uni Pro Box Mods from Yocan, allowing the mods to accommodate the majority of 510 threaded cartridges on the market today. The rings are made using high-quality materials so they won’t easily break but make sure not to overtighten the 510-threaded connection since it may get you into the problem of making the threaded connections getting loose altogether.
