Safety Warnings:[IMAGE]CHOKING HAZARD - Small parts. Not for children under 3 yrs. This K"NEX Value Tub - 521-Piece will make a great holiday gift! The convenient storage tub is loaded with 521 parts for lots of open building fun! Includes instructions/ideas for 35 unique models including dragsters, ferris wheels, dinosaurs, creatures and more or build anything you can imagine! K"NEX is the only US construction toy company focused on Building Worlds Kids Love™. K"NEX seeks to build young minds and encourage them to imagine, build and play with its exciting product line specially designed for kids ages 2 through 12. Creative open ended play, educational benefits, and family fun are just a snap away with K"NEX!