We have many skein yarns on offer. Strand yarns must first be unwound into a ball before they can be knitted. Contrary to popular belief, it is more expensive for manufacturers to produce skeins than balls. With certain yarns it is unavoidable, whether for reasons of appearance or for the simple reason of optimal gentle processing of particularly precious yarns.
If you want to make it even easier, you can use wool winders and reels.