Helps Prevent the Spread of Aerosols During Instrument Play Medium-Size Wind Instrument Double-Layer Face Mask Made to Meet the Recommendations Set Forth by the NFHS' Performing Arts Aerosol Study Patent Pending Design Allows User to Play Instrument Without Having to Remove Face Covering Great to Drink Through During Travel, Events, Exercise, y Any Situation Where a Mask is Worn Cotton Flap on Mouth Opening Features Magnetic Connections to Keep it Open or Closed Adjustable Elastic Straps for Increased Comfort Reusable y Hand Washable Cotton y Polyester Fabric Distance from Bridge of Nose to Center of Mouth Opening: 2.5'/64mm Overall Distance from Bridge of Nose to Bottom of Chin: 5.5'/140mm Disclaimer: These masks have not been tested by the FDA, CDC or any other official organization to conclude that they prevent the transmission of viruses.