60 models included: take on a epic building challenge and see If you can build them all! From a Hammerhead shark to a battleship to a Saxophone, there's a model to satisfy whatever building mood you're in! 395 parts: featuring an all new color pallet! K'nex rods and connectors easily snap together with a satisfying "click" - think outside the blocks! Stem learning fun: building with K'NEX helps strengthen fine motor skills, manual dexterity, and spatial awareness; putting them on a path towards a greater understanding of STEM subjects. K'nex rods and connectors are responsibly made in America at a landfill-free, zero-waste green manufacturing facility in Hatfield, Pennsylvania. Broken part? Missing part? If you find yourself in need of a replacement for any reason, just give us a call!