The DianSheng Mirror 4x4 (Magnetic, Ball-Core) puts a fun twist on the classic 4x4 speed cube, solve by shape instead of color! This unique mirror cube combines the visual challenge of shape-shifting puzzles with the smooth turning and stability of modern speed cubes. With built-in magnets and a ball-core design, the DianSheng Mirror 4x4 delivers improved performance, better alignment, and a more enjoyable solving experience than traditional mirror puzzles. It's a great pick for cubers looking to explore something different while still enjoying the feel of a high-quality magnetic cube. Ball-Core Corner-to-core magnets for a better, more controllable turning feel Auto-alignment Increased stability Magnetic Faster, more accurate turning that “clicks” into place. Small magnets installed inside edge and corner pieces. Overview Metallic plated exterior Plastic internals for smoother turning Key features Anti-pop mechanism "Tortoise shell" piece design for smoother turning and lubricant distribution