This lot of 7 tinker crates are unused.  The lot includes:

Drift Motorcycle

Glowing Pendulum

Mechanical Bird

Vacuum Chamber

Paper Circuits

Hydraulic Claw

Bottle Rocket

These crates are a good summer project to keep the kids busy, unfortunately the novelty wore off as the year progressed and crates went unused...so perhaps buying several kits at once can sustain the enthusiasm.

Please let me know of any questions.