3D Design - The 3D shape of mask is designed according to the human face shape to ensure the tightness, to fit the human face, to increase the breathing volume when use the face mask. 3D earrings and lightweight design make breathing easier. High quality elastic earbands make it comfortable to wear for a long time. Made of 5 layer material KN95 5ply earloop Black face mask 50ct This is a non-medical mask and is not approved for protection against COVID-19. please contact [email protected] for adverse event mask is NOT intended for use in a medical or clinical setting Parts of body contacted by mask Face elastic earloop This is a non-medical mask and is not approved for protection against COVID-19. please contact [email protected] for adverse event mask is NOT intended for use in a medical or clinical setting Parts of body contacted by mask Face elastic earloop