K1 is for (3-6 years old): 3.35" x 6.75"
K2 is for (7+ years old): 4.25" x 8"
Masks are kid and mommy approved! They're soft, reusable, washable, and best of all it allows your child to protect themselves and others by reducing the chance of spreading germs due to a cough or sneeze.
We also offer adult size masks on our site- a one-stop shop for your family. : )