These adjusters are a “must have” for face masks! They are made from very soft silicone. These will allow face masks to fit just right behind the ears and are very comfortable. Care • hand wipe only • delicate care Please email me your questions before buying. All of my items come from a smoke and pet free environment. I WILL BE PROCESS YOUR ORDER IN 1-2 DAYS. If you need the item expressed shipped please contact me to request it and the listing will be adjusted to provide that option. Otherwise your order will be shipped via USPS FIRST CLASS SHIPPING which the delivery time may take 3-5 DAYS FOR DELIVERY DEPENDING ON YOUR LIVING AREA. Please keep in mind I am not responsible for USPS delivery times. Thank you for checking out my items. See you soon….