The v cube ups the ante with their 4 x 4 x 4 pillow cubethe patented v cube technology really comes in to its own on these elaborate cube constructions rounded edges and corners make an ergonomic skill toy that meets the needs of the most demanding speed cuber incredibly smooth rotations make for a clean fast action perfect for competition or improving on personal bestswith 7401045 possible permutations and weighing in at just 157g the v cube 4 x 4 x 4 is an excellent example of enginee