Click buckle
thingiverse
To open the clip you just need a small screwdriver and some gentle force. After closing again it sits very tight.
Download Model from thingiverse
With this file you will be able to print Click buckle with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Click buckle.