KN95, FFP2 mask ear saver.
cults3d
A simple device to loosen the rubber bands of the FFP2 and KN95 masks. It can be used in other masks. Four models available, short and long, for thick and thin rubber bands. Stretch the rubber band inside the device and the device will keep the rubber band stretched, increasing its length. You can customize the length and width of the device by scaling the model with Cura or other software for a better fit.
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