The Explore Box

£14.99 / month

Start Your Adventure in Science

Three or four experiments every month for just £14.99.

Join our science club with a highly flexible subscription you can pause or cancel at any time.

Suitable for children aged 6 and up.

Free UK shipping. Your first box ships within three working days.

SKU: 1EXP Category: Product ID: 264


Is there a curious child in your family? A wee scientist with big questions? The Explore Box brings everything you need to inspire them with wondrous science experiments and hands-on projects. We’ve done all the hard work prepping, filming and gathering materials, so you and your little scientist can open the box and have fun making discoveries together.

Why Letterbox Lab?


Awesome hands-on science experiments that surprise and delight every time.


You can pause your subscription and restart it at any time.


The kits fit through most letterboxes with everything you need for all the experiments.


Joyous experiences with science that will last a life time. 


Discover the real science behind incredible phenomena in a way that is accessible to all ages. 

Great value

From £11.25/month for three exciting science experiments!


Each box contains:

  • everything you need (but still fits through most letterboxes),
  • enough materials for 1-2 children,
  • 3-4 exciting science experiments,
  • a “level up” sticker for your little scientist to wear,
  • a fully-illustrated 12-page instruction booklet,
  • link to online resources including video instructions.

What’s in your first box?

Your first box, Hidden Rainbows, includes:

Three wondrous experiments that bring the science of light and colour to life,
A fully-illustrated 12-page instruction booklet featuring Meg and Pico,
A pair of rainbow glasses and customisable rainbow spinner,
Your first collectible sticker of twelve,
A link to the online resources page featuring video instructions, a quiz, and an extension activity.

There are 12 boxes in total giving your little scientist a whole year of fun and inspiration!


Return to the Explore Box Options

Discount available if you pay every 3 months or you can pre-pay for as many months as you like with no renewing payments.


“This box was aimed perfectly at Miss A’s age range. She was completely engrossed in the experiments throughout and can
not wait for the next box to arrive! … “

“The box is great value for money…the quality and presentation excellent…build up your own Science kit.”

Patricia (Four Little Girls… The Mummy Memoirs)

“Letterbox Lab is such a terrific bunch of activities to do every month! They are a wonderful creative (and often happily messy!) way to introduce young children to scientific principles.

Merith (Merith’s Miscellany) see all of Meredith’s reviews here

As Seen In

The Guardian
Wales Start Up Awards
BBC's The Customer is Always Right
The School Run
The Paphitis Small Business Sunday

Additional information

Subscription frequency

Every month, Every two months


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