This is among the best modular insert storage cases we've found. Its removable internal bins can be arranged in various configurations and allow easy access to contents; you can simply lift a bin out and tip the contents into your palm.
Grid patterns on the bottom and lid of the case interlock with the bins, so they won't shift during transport even if a few are missing. The transparent top lets you find what you want easily and fits snugly to help prevent contents from mixing when the case is tipped. The lid has recesses that accept the feet of another economy case to make stacked cases more stable.
The case is made of sturdy polypropylene, with a lid that latches securely with two clips and a molded-in carrying handle. It measures 365mm long by 292mm wide and 55mm tall (14 3/8" × 11 1/2" × 2 3/16"). It includes 14 modular bins, including eight 51mm × 51mm (2" × 2"), four 105mm × 51mm (4 1/8" × 2"), and two 105mm × 105mm (4 1/8" × 4 1/8"), plus a 346mm × 46mm (13 5/8" × 1 13/16") bin for the front of the case for a total of 15 boxes. All are 43mm (1 11/16") deep.
The modular bins are also available separately. Having additional bins lets you quickly swap out the contents of a storage case, so you take only what you need for a job.
Highly recommended. Made in Germany.