It's a great unique and creative gift for puzzle lovers which encourages visual spatial reasoning skills. This marble run pack contains everything you need to make this stunning model, including detailed step by step instructions.

It is a manual toy and functions when the handle is turned, there are no batteries or power outlets required, only time and patience.

This 3D wooden Mechanical Clockwork Puzzle takes approximately 4 hours to complete.

Assembled it measures approx: 255 x 229 x 204mm

Contains: 233 pieces including marbles. No glue needed

Suitable for ages 14+

Skill rating: Level 4