This is the new Ground Control 62mm wheel. The first wheel to our knowledge to come in this unique size.

Size: 62mm
Hardness: 90A

Ground Control is an American brand best known for their Frames, Their riders are pro skaters like Martin Danning, Josh Glowicki, Nils Jansons

Check out videos of these riders and more info about the brand on:
http://www.gc-uprising.com/

More information about wheels in general here:
http://thisissoul.nl/inline-skate-wheels-info