The earplugs are made of soft, pliable silicone, tested according to EN 352-2. It allows the ear plugs to gently confrom to the shape of the ear canal. They are designed with an inner air cushion and triple flanges, which are not only comfortable, but also provide an effective seal even with head and/or jaw movement. Seal out noise with a noise reduction rating of 23 dB

With 70cm length cord, convenient for hanging plugs around your neck in environments where noise comes and goes. Packed in one transparent plastic box with hanging chain. 

Washable and reusable

Remove earplug slowly with twisting motion to gradually break the seal.  Due to the excellent seal characteristics, rapid removal may damage eardrum.  Do not pull cord to remove from ear.  Do not push earplug into ear so far that you are unable to easily grasp the stem with thumb and forefinger.  Remove cord from earplugs (with firm tug) before using for activities where there is a risk that it may get caught up during use.  Use only as directed. The polybag and or earlugs may present a choking hazard, keep it away from children.