K&rsquo;NEX Education &ndash; Building Simple Machines Class Set &ndash; 2176 Pieces &ndash; Ages 8+ &ndash; Engineering Educational Toy BUILD 15 FUNCTIONAL MACHINES  Students can create 15 fully functioning models of real-world machines with the parts and pieces of this engaging set. The machines that can be constructed include a first class level balance, an elevator with fixed and moveable pulleys, and a crank fan with gears and spur gears. Up to 8 models can be made at a time. FOR AGES 8 AND UP  Ideal for children ages 8 and up or grades 3 to 5, this user-friendly machine set not only offers enjoyment, but also enhances childrens skills. Middle school students will benefit from its complex yet easy-to-understand layout and intermediate difficulty. This set also promotes camaraderie and cooperation between 16 to 24 students working in teams  perfect for classroom settings. INSTRUCTION MANUAL INCLUDED  This KNEX set includes building instructions and an extensive Teachers Guide. The manual allows kids to read, understand, comprehend, and apply the guidelines, while the Teachers Guide lets classroom mentors monitor their students progress and guide them toward successful building and learning. 2,000+ KNEX PARTS  The Building Simple Machines Set includes 2,176 KNEX parts and pieces. The components come packaged in a convenient storage bin with a snap-on lid. Other benefits of these colorful pieces include the development of critical thinking skills, manual learning, and mechanical understanding. STEAMagination  Its the connection of STEAM (science, technology, engineering, arts & math) with a childs natural curiosity and creativity and it powers the fun of each and every KNEX building set. Building with KNEX puts children on a path towards a fundamental understanding of STEAM/STEM subjects.