Build Your Own Wind-up Clock

Discover the inner workings of a wind-up clock with this completely transparent, build-it-yourself discovery kit. Designed to give children, aged 5-15, a deeper understanding of how a clock actually works, from different cogs and rotating springs to a swinging pendulum and bell chime too! Box size approx. 27cm x 27cm. Enjoy 20% off: £11.99 each plus £3.95 P&P (usually £14.99 + £4.95 P&P) per order if you quote GFW1A. (UK orders over £50 have free delivery).

0844 848 2823 (7p p/m + network charge) happypuzzle.co.uk/clock