Reusable, personal-use, non-medical grade. This product is not a medical device. It is not intended to be personal protective equipment and should not be used by healthcare professionals or used in a healthcare/clinical environment or setting. The product is not intended to prevent or protect from any form of illness or disease (or otherwise). Overview 100% cotton elastic ear loops (polyester / latex rubber) screenprinted state shape at lower left corner Sizing & Fit One size fits most adults. Approximate size is 6 3/4" (width) x 5 1/8" (height). More Info machine washable