Ear inserts, also known as ear plugs or earplugs, are small devices that are inserted into the ear canal to protect the ears from loud noises. They are typically made of foam or silicone and come in a variety of shapes and sizes. Ear inserts are used to reduce the risk of hearing loss due to exposure to loud noises, such as those found in construction sites, factories, and concerts. They can also be used to block out background noise and improve sleep quality.