Mask strap thing with hinges

Mask strap thing with hinges:

optimized version of my last thing "face mask strap ear protector" thing: 4268356

• versions for diffent size (V1, V2, V3)
• wear the strap under the ears
• mask can be hooked in and out easily

Printing time for one is around 15 min.

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• If you need a version to wear the strap over the ears: thing 4362103