Hi-Lack Neo (for children) It's not a problem for kids, boxed set of 5, 1 box (5 pieces)

Exhaled air comes directly out through the exhaust valve, making breathing easier (not suitable for use by people with infectious diseases). It is molded based on the child's facial data, so it fits perfectly. Specifications: With exhaust valve Quantity: 1 box (5 pieces) Material: Filter: Polyester, PP (polypropylene), Face contact: PE (polyethylene), Rayon, Stringing: PP (polypropylene), String: PU (polyurethane), Nylon Other materials: Exhaust valve (only the exhaust groove) / PP (polypropylene), silicone rubber Size: (L) 97 x (W) 110 x (Cup height) 33mm Age range: 5-12 years