CPR Face Shield Material Plastic Size One Size Fits All Type One Way Valve UNSPSC Code 42172102 Usage Disposable Designed for single person rescue allowing the first responder to administer cpr Individually packaged complete with easy to read instructions The sealed pouch offers a tamper-evident, waterproof closure assuring the first responder a clean, ready to use device The sealed pouch offers a tamper-evident, waterproof closure assuring the first responder a clean, ready to use device