The most difficult thing about rollerblading is....

Gotz a £200+ pair of Bauers from about ten years ago, used them oooooh twice. Great nick, size 10 but will be good for 9-10.
£20 and I'll throw in a manly and knowing nod of the head. Rollerblades are for hard men and that is a FACT.

Unfortunately I'd want a 9, suitable for 8.5. Cheers though. In all seriousness if they were my size I probably would to give it a crack