The QiYi Thunderclap Mini 4x4 is a new, highly-anticipated release in the Thunderclap line by QiYi MoFangGe. At 60mm across, the Thunderclap Mini 4x4 feels noticeably more compact in the hands, which may be preferable for some cubers. Like the other cubes in the Thunderclap series, the Thunderclap Mini 4x4 delivers on premium performance and features at a mid-tier price.