There are many types of ear plugs to choose from depending on one's needs. Ear plugs come in different noise reduction ratings, from 21-33 decibels, and materials like foam or silicone. Foam plugs expand when inserted while silicone molds to the ear. Custom-made plugs can protect musicians' hearing while still allowing them to hear music. The right ear plug also depends on the situation, like blocking snoring at night. Considering noise levels, materials, and usage can help one find the ideal ear plug.