Ideal for a variety of circumstances, these Killnoise ear plugs should be carried in its storage case everywhere you go. What’s more these reusable ear plugs are easy to clean and easy to insert, simply follow our guide below: Instructions: 1. Straighten out the auditory meatus by pulling the outer ear upwards. 2. Grab the ear plug by the stem and with a light twist, push it into the ear canal. Care: After usage the ear plugs should only be washed with mild soap and water as chemicals can affect the product. If the recommendation is not followed, the protective function of the ear plugs can be decreased.