Formula? MoYu TangLong 3x3x3 Speed Cube Magic Cube - Pink .Brand new MoYu TangLong 3x3x3 Speed Cube .MoYu featured 3x3x3 Speed Cube, the enhanced version of HuaLong .Curve inner design, strong fault tolerance .Great corner cuting, more stability .One of the best 3x3x3 speed cube on the market