Piston is a new seven step, sequential discovery puzzle from Felix Ure.
Machined from solid brass the aim is to find the brass ball hidden inside.
A very fun and challenging puzzle, likely to take most people a while to solve. Find things along the way to help you solve this and remove the brass ball.
Piston measures 96 x 48mm and weighs a hefty 1.15kg.
Please note the solution is not included.