Moyu Weilong Clock 5x5 This version of the puzzle

This version of the puzzle has additional layers

A nifty cube box with a cool gearing mechanism

thus the name Bubboid 554

while the previous Qiyi Gear Cube has the slice gears rotate by 4/6 of a revolution with each move

training the brains of young children in a fun and enjoyable way

Moyu Weilong Clock 5x5 This version of the puzzleAfter years of neglect, clock suddenly has a burst of new and viable hardware options, with this Moyu Weilong Clock being the latest to join the fray. This puzzle comes with four stunning colour options to choose from, and unlike a few other brands' clocks, has a clearly visible 12 o' clock marker. Despite the name listed on some other websites, it is a normal 33 clock, not a 44 clock. The puzzle requires lubrication to turn smoothly. Use a flathead