What are eyelets for?
Eyelets are rings that are inserted into holes of other materials to reinforce the hole or shield objects from the sharp edges of the hole (in the case of metals).
What is a grommet tool?
A grommet is a ring or edge strip inserted into a hole through thin material, typically a sheet of textile fabric, sheet metal or composite of carbon fiber, wood or honeycomb. Grommets are generally flared or collared on each side to keep them in place, and are often made of metal, plastic, or rubber.
How does a grommet work?
Grommets maintain normal middle ear pressure by allowing air into the middle ear, from the outside. This reduces the risk of fluid building up in that space. If your child does get an ear infection with grommets in place, pus can flow out through the grommet.