SIZE:17.5*9.5 CM One size fits most children comfortably
MATERIALS: Made of High-Quality Soft Non-Woven Polypropylene Fabric
ADDITIONAL BENEFITS: Adjustable Nose Strip, Comfortable Soft Elastic Ear Loops with Efficient All Day Breathability.
EASY TO USE: Hold the elastic bands over your ears and press the metal strip around your nose to create a light seal around your face.
WARNING: Not recommended for children under 36 months.