A six-pointed star extruded into a fifteen-centimetre monolith. Mr. Guo's Hexastar Prism weighs nearly seven hundred grams of jumbling-only rails mechanism - no clean face turns here, just deep cuts that demand precise rail alignment before anything moves.

Sold with DIY stickers you apply yourself, which doubles as a meditative prelude to the real challenge: cycling pieces on a geometry where almost no community algorithms exist yet. Early owners note it is heavy, awkward, brilliant, and occasionally splits apart if forced - respect required.

An elite puzzle for collectors who enjoy being humbled by furniture.

Features:

• Giant hexagram-cross-section prism
• Deep-cut jumbling-only rails system
• DIY sticker application included
• ~650 g at 13 × 13 × 15 cm