Our noise cancelling ear plugs provide great protection against harmful loud noises, muffling and reducing sound to avoid permanent ear damage. Their unique design allows for great hearing protection, easy use and comfort. Ear plugs are made from premium quality soft silicone that has an ergonomic shape and it adjusts to different sized ears, providing optimum noise reduction. Materials that we use are 100% safe, silicone ear plugs are BPA free and hypoallergenic, which means they cannot cause irritation to your inner ear. Silicone is one of the best materials for this use because it causes no itching or pressure pain even after long usage. With a NRR (Noise Reduction Rating) of 32, these silicone ear plugs significantly reduce the decibel level of noises reaching the ear for effective hearing protection that makes a difference. NRR of 32 is one of the highest rating for ear plugs on any marketplace.