Vintage YongJun (YJ) 5x5 Glow-in-the-Dark Cube - 20-Year-Old Museum Piece

Calling all puzzle collectors, historians, and restoration enthusiasts! This is a legendary piece of twisty puzzle history—the original YongJun (YJ) 2nd Generation Spring-Version 5x5 Glow-in-the-Dark Cube, manufactured nearly 20 years ago. Long discontinued and entirely out of print, this rare batch of original factory deadstock has been uncovered and is being cleared out at a near-free, symbolic price point.

⚠️ Important Condition Note (Vintage/As-Is Sale): Because these cubes have been preserved in storage for two decades, the vinyl stickers show obvious signs of aging, oxidation, discolored spots, and fading when viewed in daylight. The original vintage retail box may also show minor shelf wear. We are selling these strictly "As-Is" as historical clearance items.

Despite the cosmetic aging on the stickers, the core magic remains fully alive! The specialized glow-in-the-dark ABS plastic body still charges perfectly and emits an incredibly vibrant, eerie green luminescence in the dark, illuminating the entire cubic grid structure. The turning mechanism operates smoothly for an early-generation spring puzzle. Whether you want to preserve it on your shelf as a literal museum piece, strip and re-sticker it for a flawless custom look, or simply own a rare piece of 2000s cubing history for next to nothing, this is a once-in-a-lifetime clearance add-on!

🧩 Key Product Highlights

Authentic 20-Year-Old Discontinued Deadstock: A true 2000s relic from YongJun's early engineering era, complete with its original vintage packaging.

Vibrant Night-Glow Luminescence: Built from specialized photo-luminescent plastic that charges under light and glows brilliantly in pitch-black environments.

Classic 2nd Gen Spring Architecture: Features the historically significant early spring-retention core design that paved the way for modern big speed cubes.

The Perfect Restoration Project: An absolute dream canvas for custom modders looking to apply premium vinyl sheets or clean up a piece of puzzle history.

📐 Technical Specifications

Brand: YongJun (YJ) - Vintage 2nd Generation
Item Name: 5x5 Layers Magic Cube (Museum Piece)
Puzzle Type: 5x5x5 High-Order Layered Hexahedron
Special Feature: Full Body Photo-Luminescent (Glow-in-the-Dark)
Body Material: Vintage GlowABS Plastic
Cosmetic Condition: Stickers are aged with visible discolored spots/blemishes. Mechanism is functional.
Packaging: Original Vintage Red & Black Cardboard Retail Box (May show minor vintage wear)