NEW KiwiCo Ballista Tinker STEAM Crate age 9+ Build a ballista and experiment with aiming and launching! Includes a step-by-step video tutorial link, illustrated blueprint instructions, all the materials, and a special-edition Tinker Zine magazine for more fun! This is a tinker crate from KiwiCo that was mailed to us but never opened or used. It is complete and ready for some fun! These are perfect for summertime projects while out of school. Includes a step-by-step illustrated blueprint instructions, all the materials, and a special-edition Tinker Zine magazine for more fun! If you are not familiar with Tinker Crates from KiwiCo, they are all inclusive projects for kids that teach and touch on elements of science, technology, engineering, art, and math (STEAM). They are brilliantly designed and I have just as much fun building them with my son as he does. They are for all types of learners and the age is just a guide- really anyone will enjoy these projects. We loved them so much that multiple family members are sending them and we have doubles and triples. *Please see my closet for additional tinker crate listings