Quick demonstration of black speed cube to
show smoothness and triggering ability.
I first do "R' U" eight times (two complete
cycles), then follow up with "R U' R' U" six
times (one complete cycle).
To purchase a DIY Kit for yourself, look for
me on Ebay:
http://search.ebay.com/_W0QQsassZpuzzleprozQQ
htZ-1 Tags :PuzzleProzSpeedCubeEbay