Great kit to build your own door alarm to deter intruders!
We use good quality gender-neutral wrapping paper. As a default, all orders placed in November and December are wrapped in Christmas wrapping paper, and all orders placed in other months are wrapped using a non-Christmas paper (eg for a birthday). If you prefer birthday paper in the run up to Christmas or Christmas paper at other times of the year, you can request this in the Special Requirements box on the Basket page.
Build a door alarm for your bedroom.
Buzzer will sound to alert you if unwanted intruders – or little brothers or sisters cross your threshold!!
Learn the science of connecting circuits with this comprehensive but easy snap together kit.
Requires 2 x AA batteries (AA batteries not included but available separately, click here for details)
This item has been chosen by a member of our team as their favourite Mulberry Bush toy, saying: "I just think this looks fun. Would keep my girlfriend out of the snack cupboard."
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Mulberry Bush:
We offer a number of delivery options:
Standard Delivery
Next Day or Name The Day Delivery
*Mainland UK, excludes Highlands & Islands (where delivery is a fixed price of £3.99).
**Next Day Delivery or Name the Day Delivery are not available if your order includes personalised items or for delivery to UK Highlands & Islands
See our Delivery page for full details and for international orders.
No Quibble Returns
We want you to be 100% delighted with your purchase. If you’re not, we’ll exchange it or give you a full refund, no questions asked. Return your order within 30 days - and if you’re buying early for Christmas, unwanted presents can still be returned in early January.
Looking for an exchange? We’ll even post you out the new item with free UK delivery.
For full details, see our Returns page
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