I recently bought the shuttle below, but it didn't come with pirns.  I thought it would be easy to find them, but it's proving to be slightly more difficult than I had expected.  Does anyone have a shuttle like this and if you do, what size/type of pirn do you successfully use?   Thanks in advance!

 

https://www.etsy.com/transaction/133563390?ref=fb2_tnx_title