ENVOI RAPIDE le même /1 jour USA -100 fils de pont de nez 3 mm x3 7/8" pour sécuriser le masque facial
These are not the thicker aluminum ones, so it sews in trim and well. Made for a softer face mask nose seal and comfort. (see picture compared to mask for size comparison). Can use 2 of these for more firmness if desired but I feel one is good.