The plastic buckle of the mask can hang the rope on both ends. There are two buckles. We directly hang the mask strap on these two plastic buckles, and then wear it, so that the mask rope does not need to be hung on our ears. Come on, so our ears can be very relaxed. Even if we wear a mask for a day, our ears will not be reddened. The plastic extension buckle of the mask hanging buckle is made of PP plastic, the size is 1.1cm*5.4cm, and there are four buckles. The position can be adjusted for easy operation, just hang the ropes at both ends into the plastic buckles.