The Yocan Loaded Quartz Quad Coils are quad quartz rod replacement coils made for the Yocan Loaded vape. If you own that device, this is the part to reach for when it's time for a fresh coil.
They're built from metal and quartz, and the "quad" in the name refers to the four-rod design the page describes. One detail worth knowing: these are sold by unit, so each order is a single coil. If you want a few on hand, add more than one to your cart.
The page is specific about the device, which makes shopping easy. Just confirm that you own the Yocan Loaded before ordering, since coils are designed to fit particular models and aren't always interchangeable.
Coils wear out over time, so keeping a spare nearby means you won't have to stop what you're doing when one gives out.