The mf8 Son-Mum 4x4 V3 is the latest entry in mf8’s Son-Mum 4x4 series, specially designed for advanced puzzle solvers and collectors. This unique 4x4 shape mod incorporates a distinctive 3x3 "inside" structure within the outer 4x4 layer, providing an added layer of challenge that will test even the most dedicated speedcubers. Crafted from sleek black plastic and finished with vibrant, eye-catching stickers, the Son-Mum 4x4 V3 delivers both visual appeal and a truly unique solving experience for those seeking something beyond standard cubes.