Letterbox Lab is the kids’ science kit reinvented to be more fun, more colourful, more convenient and more educational than ever before. Developed by two passionate science fans who have dedicated a decade to engaging the public with science, our science kits inspire children to play with scientific ideas and make hundreds of discoveries in their living rooms. For parents, we’ve made a science kit that arrives through your letterbox containing everything you need to perform incredible experiments with your children – no prep time or extra materials required, and with instructions so clear you can get started with ease. For children, it’s much more than that. It’s the beginning of an adventure that will take them over the rainbow, across space and into the inner workings of the natural world.