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  • letterbox-lab-discount code Product Shot
  • letterbox-lab-discount code Product Shot
  • letterbox-lab-discount code Product Shot
  • letterbox-lab-discount code Product Shot
  • letterbox-lab-discount code Product Shot

Letterbox Labs + Discount Code

Letterbox Lab is a science experiment based subscription box for kids aged 6+.

Each box contains hours of fun and educational STEM-based activities with everything your budding little scientists would need to get started.

Based on a different theme each month, the kit includes 3-4 hands-on science experiments linked to the KS2 curriculum, designed for children and completely safe to use.

Recent themes have included a self-inflating balloon, glow in the dark chemistry, slippery slimes, launch rockets and a robotic hand.
Subscriptions from only £10.00 per month
RADAR10 to get 10% off your first box via uOpen
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  • KiwiCo is a monthly box
  • Choose between 7 STEAM based activity boxes to suit ages 0-100 yrs old 
  • Receive all the materials, guides and resources needed for each project
  • Designed by experts and tested by kids, with over 1000 hours invested in designing every themed crate
  • Includes a parent guide & Imagine magazine with inspirational content
  • Members access to online tutorials, tips and community sharing
  • KiwiCo is a US-based company that ships to the UK
  • KiwiCo ships 1-2 days from signing up, with international delivery to the UK taking 7-10 days
  • Flexible subscription – cancel, pause or switch crates anytime