Tips:

• Print with the exposed moving ring facing downwards.
• Use a strong material for long-term or heavy use. For light loads, and indoor use, PLA is sufficient.
• Avoid filaments with additives as the parts will almost certainly seize
• For a multicoloured ring, use a material toolchanger, AMS/MMU system. moving ring cannot be removed without breaking the carabiners.
• When using, the lock isnt needed if there is no motion, for example hanging something from a rope in a tent, or suspending wires along a garage ceiling 
   

Models:

Left: Dual
Middle: Single+
Right: Single