I can vouch for these too, had a set on my 'GSXR' and was so impressed that I bought another pair for the current 'Blade' when I got that,
now......,
I HATE wasting money and to my eternal shame have bought some shocking tat on Ebay before (I take no pride in it) but genuinely these are surprisingly good and I'd pay more for them - in fact when I sold my GSXR via OYB in Aylesbury, they were so impressed after test riding it that they took a picture of the levers and made it a selling feature on the ad (custom levers etc........).
Anyway - DYOR as they say, but I'll get more of these :-)