I started making a couple of these to bundle printer cables. I figured that various styles would be good for other things, so I expanded the line. There are four different sizes. Approximate inside, flat 12mm x 18mm, small 20mm, medium 30mm, large 40mm. The mountable versions have a single 4mm hole. I was able to print all sizes without a raft or brim, but you will need support for the hinge. I would suggest tree support. Depending on the filament some supports came off fine while others needed a little cleaning up before putting them together. Once the hinge is lined up use a piece of 1.75 filament to join them and trim ends. I put a small touch of glue on one end to make sure they don't work apart. Nothing special for the print settings but you may want to use more walls for strength. The -M files are the mountable versions.