-Inner speed cube mechanism and big hole design improve its performance
Anti-pop design on edge pieces perfectly eliminates the pop problem
Speed mirror S has both great turning feel and fantastic performance
The Speed Mirror S uses 3x3 speedcube mechanism which make the turning more compliant and more comfortable than other twisted puzzles
Big hole design on corners, edges and inside structure gives the cube high corner-cutting and make it smoother, and also reduces most of the lockup when turning the cube