Copper whorls to match your interchangeable spindle shafts. (shaft not included, they are used as a sizing reference)

Insert from the bottom part of the shaft and squeeze until snug in place.
All models fit on the interchangeable shafts (past models as well).

Things to keep in mind:
- Different woods have different densities = weights.
- The smaller the whorl in weight, the easier it is to flick your spindle with strength (which equals more speed) and the more yarn you can store without tiring your hands
- The smaller the circumference the faster the spindle will turn, but also the shorter the spin.
- The more weight on the outside of your whorl, the more inertia you have (durable spinning time)
- If you know your shaft's weight, you can figure out the total spindle weight and adjust to your needs.

You can switch whorls during a spin, for example starting slow and steady, then going smaller as the spindle fills out which balances out the weight, until you eventually remove all whorls and spin with the shaft only.

Approx. Whorl Weight Dictionary:
Diameter is approximately 1" 1/4 for copper contours and 1" 1/2 diameter for the inlay
Weight is between 7 & 11g