The QiYi Pyraminx Duo is Qiyi's take on the classic Pyraminx Duo originally designed by Mefferts, one of the most recognized tetrahedral puzzles for its structural simplicity. It is a modernized revision of the original concept, with mechanical and finish improvements that update a puzzle historic within the cubing community while keeping intact the essence of the original design.

The geometry of this puzzle is notably simpler than that of the traditional Pyraminx. It has four corners and four centers, without the intermediate edge pieces that increase the complexity of the classic Pyraminx. This reduction of pieces makes the Duo an accessible puzzle for beginners and a quick exercise for advanced cubers who want to practice basic patterns or use it as an introduction puzzle to present the concept to others approaching cubing for the first time.

The internal mechanism incorporates a soft click system that marks the end of each turn. This small haptic detail helps settle the moves and provides a clear reference without needing to look at the puzzle, particularly useful when teaching solving to someone starting out in cubing. The overall feel is one of fluidity, with well-defined turns and without needing excessive force to complete each rotation.

The finish uses plastic tiles instead of traditional adhesives, a change that adds durability and avoids the typical wear of prolonged use. With dimensions of 94 x 94 x 79 millimeters and a weight of 99 grams, it is a comfortably sized puzzle for adult hands and light to transport. It is available in black or transparent, two aesthetically differentiated options to suit different visual preferences. The transparent version allows you to see the internal mechanism at work.

• Tetrahedral puzzle with 4 corners and 4 centers
• Dimensions: 94 x 94 x 79 mm
• Weight: 99 g
• Internal mechanism with soft click
• Plastic tiles instead of adhesives
• Qiyi's version of Mefferts' Pyraminx Duo

• Tetrahedral puzzle with 4 corners and 4 centers
• Dimensions: 94 x 94 x 79 mm
• Weight: 99 g
• Internal mechanism with soft click
• Plastic tiles instead of adhesives
• Available in black or transparent