Ok, so my first impression was that they are smooth but most bearings are brand new... Three weeks later of intense speed I notice they've slowed down I cleaned them and the ball retainer on several of the bearings were broken

Ok I have to say I own alot of bearings bones reds to panther ceramics, these have to be the best I have yet! this is a independent secret! they state as good or better than bones swiss well I think its true at 1/4 of the price. Just quoting what I read anyway Im sold on these babies

i just put these on my sector 9 sidewinder replacing my abec 5 grese balls i had and wow i gotta say im impressed :) i was originaly looking for bones reds but both skate shops were out of stock so they told me to get these insted.they roll very smooth and they keep my speed up for longer. id say definately worth the 20 bucks. i would recommend them to anyone who wants best bang for the buck. get these they wont let u down.