4g threaders made of work-hardened, lightweight aluminium, closed with a copper spring in your choice of 5 colours: rose gold, gunmetal, antique brass, golden raw brass, or black coloured copper. The hoops are 2 inch or 5cm in diameter. They look heavy but are actually quite light; each 2" hoop weighs approximately 12g.
Named after the great inventor and showman, Nikolai Tesla. Here's a quick video showing how to take off and put on my Tesla coil hoops.
The photo collage shows my slightly thinner, 6g Tesla Hoops available here; I also make this design in heavier-weight solid copper, which you can see here.
The entire range of Tesla Hoop sizes, metals, and colours can be viewed here.