Roller Derby makes several models of inline skates:
PURCHASE the Roller Derby AERIO at Amazon - link - click here!
Roller Derby AERIO - DAVE'S CHOICE - best inline skates. These are the skates I use now and and the ones I like the most out of any I have ever used for skating - Roller Derby AERIO - good for toe spins, heel spins, and heel and toe spins. When I linked from here they were $67.99 to $79.99
Some comments on Amazon state that there is a problem with the assembly and wheel alignment - I think this indicates there may occasionally be manufacturing problems with the skates - my Roller Derby AERIO skate work great and were properly assembled - so if you get some, they will probably be great.
Roller Derby Kids Adjustable Inline Skates $39.54 to $59.99 - these seem pretty good and you can adjust them - they even fit some smaller adults!
More information about inline skates