K&rsquo;NEX 100 Model Building Set &ndash; 863 Pieces &ndash; Ages 7+ Engineering Educational Toy (Amazon Exclusive) CLASSIC PIECES  This set comes with 863 classic KNEX rods and connectors. These pieces can be attached to one another in different ways. It allows your children to create a multitude of shapes, figures, and structures with ease. The snap fit pieces stick together securely and can be easily reassembled into other creations REAL MOVING PARTS  Unlike other building toys, KNEX allows kids to create unique models that actually move. Kids can make interactive toys using KNEX parts whether its wheels, rotors, wings, and tracks. Making rolling cars, working amusement park rides or a transforming animal isnt just a dream when you have this 100 Model Building Set! CONVENIENT STORAGE  With over 860 pieces, KNEX presents the 100 Model Building Set in a hassle-free portable suitcase storage box. You dont need to worry about where to store small plastic toy parts or getting them lost. Keep all the KNEX parts in one place that is easy to access. Store all those precious pieces in this handy suitcase storage box that kids will always love to open. Packaging may vary. VERSATILE  This building set includes an instructional booklet, which shows builders how to create 100 unique models with its helpful illustrations. This toy is ideal for boys and girls aged 7+ and up, as they can make anything that their minds can come up with. Foster your kids imagination and creativity with KNEX. See your youngsters build a blimp, ambulance, or even the Eiffel Tower! 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. DEVELOPMENTAL BENEFITS  KNEX supports key areas of a childs developmental growth. As they click the different parts together and discover how the building system works, theyre strengthening hand-eye coordination, fine motor skills, problem-solving skills, spatial awareness, and exercising their imagination! COMMITMENT TO QUALITY  KNEX rods and connectors are responsibly made in America at a landfill-free, zero-waste green manufacturing facility in Hatfield, Pennsylvania. We test to the strictest quality and safety standards, ensuring that your child has a successful, trouble-free building experience. PARTS GUARANTEE  Broken part? Missing part? If you find yourself in need of a replacement for any reason, just give us a call! Well get you what you need so that your child can get back to building as soon as possible.