Aurora is the third generation of Shenghou 3x3 . Published on May ,2013. Size:5.6x5.6x5.6cm Material: ABS + PVC Sticker The Shengshou cube, on the basis of ordinary light sliding track structure. First using the three-layer track structure design.not only makes the player perform with super stable positioning ,silky-smooth and light performance and especially super fault-tolerant knot structure,but also make the player feel even more powerful,achieve your outstanding results. a good choice for both beginners and experts.