Item Type: Earplug Material: Silicone Connecting Wire: Including Metal Plastic Wire Efficacy: Noise Reduction Package List 1 x Earplug 1Comfortable Fit: The earplug with three layer tree design and elliptical shape perfectly fits to your the ear for comfy and easy wearing. 260cm Long Wire: The ear plug also comes a wire with a total length of 60cm, which can be worn behind the neck to prevent the earplug from falling and losing, and to avoid dirt or loss after falling. 3Noise Reduction: Three layers design will largely improve the insulation and reduce noise, making the ear plug very suitable for sleeping and swimming. 4Great Silicone: The silicone material is adopted, which can be cleaned repeatedly. If the earplug is aging or damaged and does not have the effect of sound reduction, please replace it. 5Easy Carrying: Light in weight and compact in size as well, the earplug enables convenient carrying for both indoor and outdoor use.