Tinker Crate is designed to help kids ages 9-14+ years build their problem solving skills with a monthly box of hands-on STEM (Science, Technology, Engineering and Math) activities.
Along with the “Tinker ‘Zine” for kids, every Tinker Crate includes one super-cool STEM project that is reviewed by educators and tested by kids and all the materials and inspiration for that project. Receive a new Tinker Crate theme every month.
1 month, 3 month, 6 month Tinker Crate subscriptions and 3 month, 6 month, and 12 month Tinker Crate gift subscriptions are available.

My son put together the hydraulic claw. He was able to assemble it without problem, but it is flimsy and won’t stand up on it’s own. I understand it is designed to teach more than to be a permanent structure, but it is disappointing for him that it doesn’t work as it should. Stiffer beams…maybe plastic rather than cardboard would have been helpful.
Tinker crate is a great service and is well worth the price. Will buy again