The set of items includes 10 pairs of hearing protection corded ear plugs, which are made of durable soft and snug silicone material for noise reduction and better hearing protection, and suitable for use while you are working and sleeping. With reusable design and easy to use, it is really a wonderful corded ear plugs set for choice. Features - 10 pairs of the corded hearing protection ear plugs in one set will be sold together. - Cord color: mainly blue. - Material: durable soft silicone. - NRR (Noise Reduction Rating): about 25dB. - 100% brand new and high quality Soft Silicone Corded Ear Plugs Reusable Hearing Protection Earplugs. - Made of soft and snug silicone for noise reduction and providing you better hearing protection. - Noise reduction for work, home, sleeping and safety. - Washable and reusable design, and easy to use.