Recreational Inline Skates What Size Wheels Should I Buy For These Inline Skates?

What size wheels should I buy for these inline skates? - recreational inline skates

I wonder what size and type of wheels should I buy for runners after they have for sale on eBay:
http://articulo.mercadolibre.com.ar/MLA- ...

The roles are size 10 (or 42) depending on the numbers
What is the exact code wheels should I buy? I would just like skating.

Thank you!