Innovating Science refill set is for use with the IS3100 ABO Blood Typing Kit, and contains four simulated blood samples for realistic replication of the blood typing procedure and safe classroom use, and simulated anti-A serum and anti-B serum for identifying blood type. The pack is suitable for age 13 and older with adult supervision. The refill set meets the requirements for Department of Transportation (DOT) small quantity exemption 173.4, and conforms to 49 Code of Federal Regulations (CFR) 173.4 for domestic highway or rail transport only.Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology.Innovating Science products, manufactured by Aldon Corporation, include educational kits for the chemistry, life science, green chemistry, advanced placement chemistry, and forensic fields. Aldon Corporation was founded in 1964, and is headquartered in Avon, NY.What's in the Box? (4) simulated blood samples (1) bottle simulated anti-A serum (1) bottle simulated anti-B serum