4x4 Calendar Cube - Perpetual Date Display Puzzle (2000-2089)The Ultimate Desk Calendar Puzzle Transform your daily routine with this ingenious 4x4 calendar cube that combines functionality with the satisfaction of speedcubing. Designed by Daniel Evans, this unique puzzle lets you display any date from 2000 to 2089, making it the perfect perpetual calendar for your desk. Why Choose This Calendar Cube? Complete date coverage: Display every single date from 2000 2089 no gaps or missing dates Seasonal symbols:

complete with flipper wings and a cheerful beak

The cube's vibrant colors

it would take a lifetime to solve

The QiYi Smart Timer adds Bluetooth connectivity

Do I need to adjust the tensions

This is DianSheng's 2023 flagship speedcube and performs very well

A gigaminx has significantly more pieces than a standard megaminx due to having five layers per face

Club or classroom projects

Whether you're waiting for a friend

With 900 visible “pixels” (9 per cube face)

Reconfigure the blocks to reveal the T-Rex shape

seamlessly integrated with a sophisticated maglev tensioning system