My Ashford Kiwi spinning wheel needs to be finished and I have no idea what to use to do this! What can I do?

You can stain it or paint it, but you want to be careful not to use a finish that will wear off on the thread. If you're not familiar with primer and paint techniques, a stain would be an easy way to seal the wheel and make it look beautiful. The tricky part will be getting stain into the triangular cut outs. The inside edges will soak up a lot of stain, so they will be darker, and it will be tricky getting the stain into the cut outs. The two outer faces will be easy to stain, and the thread groove will be easy to access, but will soak up a lot of stain. A hard gloss coat will seal the stain and give the thread groove a low friction finish.