

🧩 Unlock your desk’s potential with the Craighill Jack Puzzle — where style meets brainpower!
The Craighill Jack Puzzle is a precision-crafted mechanical puzzle made from solid cartridge brass, measuring 3 inches cubed and weighing approximately 1 pound. Designed for ages 14 and up, it features six lathe-cut, bull-nose brass bars that interlock in a unique way, providing a challenging and tactile experience. Beyond a brain teaser, it doubles as a sophisticated desk accessory or paperweight, blending functional design with mental stimulation.










| Product Dimensions | 7.62 x 7.62 x 0.25 cm; 532 g |
| Manufacturer recommended age | 14 years and up |
| Item model number | 742288779796 |
| Educational Objective(s) | Concentration Skill |
| Assembly Required | Yes |
| Batteries Required? | No |
| Batteries Included? | No |
| Material Type(s) | Brass |
| Color | Brass |
| ASIN | B072JZWX7B |
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