The images and descriptions are for similar products. Please be sure to check the actual photos. Feel free to ask if you have any questions. Excellent sound insulation performance, applicable to a wide range of scenes and places. Reusable and lasts longer than other earplugs. Noise-canceling earplugs come with a plastic case for easy portability and protection of the earplugs. Earplug Details: Gray 3-layer; Material: Nano silica gel; Application: Hearing protection; Specifications: 17mm * 14mm; Lifespan: Long-term use; [Wide Range of Applications] Earplugs: Home, hotels, work, study, sleep, airplanes, camping, shooting, meditation, concerts, parties, live music, swimming, public transportation, etc. By wearing them when you are bothered by surrounding noise, they will block out unpleasant sounds in your ears. 3137 Earplugs for sound sleep, complete soundproofing, for those with sensitive hearing, noise reduction value of 32dB, for airplanes, study, washable, reusable, with storage pouch, 1 pair