Check the listing for details. Project Mc2 Ultimate Lab Science Experiment Kit Replacement Parts New Test Tubes. Condition: New. Listed at 11.99 USD. Test tubes, rack with lids. Upgrade your science experiments with this Ultimate Lab Science Experiment Kit Replacement Parts. The kit is perfect for young scientists who want to explore the world of science and nature. It features new test tubes that are great for conducting various experiments in the lab. This kit is recommended for children aged 8 and above, and includes a custom bundle of science and nature toys. The brand, Project Mc2, has been recognised as a trusted name in the educational toy industry. The kit is made in China and is perfect for kids who are interested in learning about science. Get your hands on this ultimate lab science experiment kit replacement parts today and explore the wonders of science!