Totally Tiffany - Stamp Suitcase

I've purchased many of these (+_. 18) . I have used them for sorting seasons, , keeping my stamps by genre, my wood mounts, stencils, vellum quotes, premium die ink cubes separate from distress) , & even made akits with them. They are just a neat size for tossing things in, very little can be hidden in this one inch deep box.
Some of the cases that I have have a little cut outs on the tops so that the two top pieces can, effectively speaking, lock/latch, some do not have this 'latching feature-- and I really miss it. What I don't know is if that was a detail that was coming or going. When the contents are sparse , then I don't need to worry, but if it is a bit of a squeeze or the stakes are hgh if it should fall open prematurely, then I really do want this locking deal.
So my question is : are the suitcase that are coming in, and are in stock now, 'Do they have interlocking latch on the top , between the handles?' Please contact me if you need more information .
These are terrific for organising ; I'd hate that something so simple as a little cutout was lost, which would make this change from being a great product to an adequate item.
Tudor
PS. I have a medical condition which explains why I drop things. I'm not going to stop dropping things, so I need to make sure that everything that needs to be is tucked in. The suitcases with the latching manage this the ones without, I have to gerryrig. I'd really like to pay for something and have it work right out of the gate!   By: Tudor (20-Dec-16) Helpful Question?  Yes  |  No Thank you! Report Inappropriate This question has been reported. Thank you!

What is the material used to make this? Plastic, stiff paper?   By: nordicruth (22-Sep-15) Helpful Question?  Yes  |  No Thank you! Report Inappropriate This question has been reported. Thank you!