Features 1、Good sound insulation. Reduce noise 29 dB,improve sleep, protect hearing,enhance concentration and so on. 2、Bullet-type contour design, soft and comfortable, wearing no pressure feeling, fit ear canal. 3、Smooth surface, the anti-fouling treatment, wearing health and safety. 4、Sound-absorbing elastic material, durable toughness without deformation, seven seconds slow rebound pinch. 5、Compact design, elegant appearance, easy to carry. Specification Features: Compact design, elegant appearance, easy to carry. Good sound insulation. Reduce noise 29 dB,improve sleep, protect hearing,enhance concentration and so on. Bullet-type contour design,soft and comfortable, wearing no pressure feeling, fit ear canal. Smooth surface, the anti-fouling treatment, wearing health and safety. Sound-absorbing elastic material, durable toughness without deformation, seven seconds slow rebound pinch. It is a good helper to interference noise from your home, dormitory, self-study classrooms, travel boat plane travel, factories, construction sites, downtown areas from noise interference is a good helper, is your healthy new life good partner. Specifications: Material: Polyurethane Color: Orange Noise Reduction Value: NRR 29dB, SNR 31dB Size: 13*10*26mm/0.5*0.4*1.0in Package Weight: 13g/0.46oz Package List: 10 * Anti Noise Earplugs