The Exploring Machines Classroom Pack allows up to 32 students to explore how real world machines work! The pack includes 4 Exploring Machines Kits - each kit contains over 1,400 assorted pieces that students can use to build up to 30 fully functioning replicas of real-world machines such as gears, levers, pulleys, wheel and axle combinations, inclined planes, and more! That's a total of over 2,700 parts! K'NEX rods and connectors are made from high-quality plastic. Your students will be amazed by what they can create with this building set. This construction educational toy comes with an instruction manual to guide students through their building adventures. The sheet comes with construction ideas and tips for students so they can create structures on their own. Parents and teachers can also use the manual to guide children through the process. This building set comes in a strong plastic bin with snap-on lids for easy classroom storage. Teach your students to clean up as they go with the K'NEX Education Exploring Machines Set. Studies reveal that students have more success learning STEM subjects through hands-on activities than through reading about abstract concepts in textbooks. K'NEX Education sets allow students to build replicas of real-world machines and contraptions and through the lesson plans and experiments, gain a concrete understanding of the scientific principles that make them work. Promote your children's development of STEAM (science, technology, engineering, arts, and math) concepts by igniting their natural curiosity and creativity. Building with K'NEX helps teach a fundamental understanding of STEAM subjects. Plus, this classroom pack will save you over $100 vs buying 4 individual sets.