Knex Red Plastic Case Storage 18" x 14" x 5.5" K'nex Starter Kit w/Parts Pieces | eBay
Vintage K'NEX KNEX Green Carrying Storage Case Box Plastic Discovery 33023 +MORE | eBay
I need a better organization system. This is most of my knex. What do you guys use? : r/KNEX
How to Store Your K'nex Efficiently : a Complete Guide : 8 Steps (with Pictures) - Instructables
Knex Storage Box Case Plastic GREEN Carrying Handle Flip Top Travel | eBay
K'NEX Huge Lot Of 2 Vintage Knex Storage Box Cases + Mixed Lot of Pieces | eBay
Amazon.com: K'NEX Imagine: Click & Construct Value Set – 522 Pieces, 35 Models, STEM Learning Creative Construction Model for Ages 7+, Interlocking Building Toy for Boys & Girls, Adults : Everything Else