Check the listing for details. KiwiCo Eureka Crate Makers Guide Hand Pump Kit NEW Enginering Stem Build it. Condition: New. Listed at 14.99 USD. This Kiwi Co Eureka Crate Makers Guide Hand Pump Kit is perfect for anyone interested in engineering and science. With the ability to build your own pump using the kit, you can explore the principles of fluid dynamics and learn about the engineering behind it. The kit is recommended for ages 14 and up and includes all the necessary materials and instructions to get started. The kit is made by KiwiCo and features their signature hands-on approach to learning. It is a great addition to any science or nature toy collection and is sure to provide hours of educational fun. The kit is not modified and is made in China. Get ready to explore the world of engineering with this Kiwi Co Eureka Crate Makers Guide Hand Pump Kit!