silicon Imported SUNYAO Brand CPR Mask kit individually packaged in hard case with wrist strap. quality transparent mask features a one-way filter valve and elastic head strap to facilitate hands-free operation. makes resuscitation safer for the responder and more efficient for the patient. Replaceable CPR valve 18mm O.D. connector can be attached to any standard ventilation and oxygen equipment. Oxygen inlet port allows the mask to remain on the patient with supplemental oxygen flowing FDA approved.Latex-free – Operating instructions included. Easy to use. For use on adults, and inverted for infants/children – Ergonomically shaped mask with soft-air cushion for leak-free performance, easy grasp, and patient comfort – Disposable filter to avoid cross contamination – Elastic head strap to keep mask in-place on patient. Bonus CPR face shield comes in 2×2 durable nylon key-chain pouch, and a paire disposable gloves and two alcohol pad.More convenient and thoughtful accessories, more professional, better and safer medical rescuetator.