Ikea TROFAST box insert (2 levels) by farin_cz | Download free STL model | Printables.com
Amazon.com - Ikea 800.892.39 TROFAST Storage Box, White; 16.5" x 11.75" x 4 ", Stackable, Compatible with Trofast Frames and Lids, Made of Polypropelene - Childrens Storage Furniture