The most recent model in QiYi MoFangGe's Thunderclap series is the Thunderclap V3 M (Stickerless). A number of new improvements are included in this affordable magnetic 3x3 speed cube, such as slots to ensure proper magnet orientation, tracks on the pieces to lessen friction, an updated anti-pop mechanism, and all major plastic internals. For a fantastic price, this puzzle has a vintage QiYi feel! Look it over!