See the inner workings of a lock with this entertaining kit - assemble the lock yourself and then watch through the transparent casing as the pins move whilst you turn the key. Ideal for puzzle enthusiasts and budding engineers, as well as anyone who's ever put the wrong key in the door and wondered exactly why it won't work.
Not suitable for children under 14 years of age, unless under full adult supervision.
Contains all the required components to create a working padlock.
Comes boxed - box measures 17.3 x 9.7 x 3.2 cm.