Marble Run Spiral Hoist

The spiral hoist is a great challenge both for brain and fingers I can reccomend this type of puzzle building as excellent. Aged 88 common sense says stop, but the challenge to brain and shaky fingers is not to be igfnored, I will be back for more challenge 88 or no 88 Graeme

Still good, but the smallest, finickiest and most jam-prone out of all four.

Straight forward to assemble. Assembly instructions are excellent. Overall, a great product.