Spacer for Monzana nut and bolt organizer

This is an adaptation to increase the number of organizational compartments made for the screw organizers known on Amazon Spain as Monzana. This same organizer is sold under other trade names such as Serenable, Lism or Homly on Aliexpress. The drawer compatible with these adapters is the 12-drawer, 24-compartment model shown in the photo. The adapters included are of various configurations for 3, 4, 5, 5, 6, 6, 8 and 10 compartments. All walls are 2 mm thick and the parts ha