Snap In Connector (double-sided)
thingiverse
This reversible quick connector is perfect for holding bags or other items securely. The hooks snap in easily and can withstand a significant amount of force. You can combine it with the design from http://www.thingiverse.com/thing:45219 for added functionality. To create this, print two long, thin U-Hooks, one Snap-in-Unit, and two Lock-Blocks. The Lock-Blocks should stay in place by friction; if not, use adhesive tape. Customize the size using the "customizer" feature as needed.
With this file you will be able to print Snap In Connector (double-sided) 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 Snap In Connector (double-sided).