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.

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 235 x 185mm

Contains: 254 pieces including marbles. No glue needed

Suitable for ages 14+

Skill rating: Level 4