Carabiner with magnetic action. This design eliminates flexing plastic parts while allowing strong and secure clipping action. The part may be printed with stronger and stiffer plastic. This allows for a stronger part while eliminating plastic fatigue caused by flexing plastic.
You will need three 4mm by 5 mm magnets.
Easy to hook keys or backpack with smooth magnetic-driven clip.
WARNING: Do not use it for climbing!
Credits:
Daniel Landrum