One Second Puzzles by House of Marbles

One Second Puzzles by House of Marbles is a set of 3 classic puzzles to challenge yourself. Then challenge your friends to see if they can dismantle the cross, get the ball bearings to stay in the opposite holes & separate the ring from the spring. Watch them struggle for a while & then show them how to do it in a split second. It’s easy to solve these quick puzzles when you know how! Age 8 years – adult.

Lots of science is involved in solving these puzzles and the engineering department of a large UK university have bought these from us to use in teaching their first year students.

Box approx: 6 x 9 x 4 cms