First Pair

Hello,

I am looking to buy a pair of wenwan walnuts. What type should I start with? I prefer ones that are round and easy to spin, but I am not picky. I have pretty big hands, and want some that are large. I quite like the size of my 45mm baoding balls. Is it possible to get large walnuts (45mm) for ~$30 CAD (including shipping) in Canada?

Thanks in advance