Earplug made from a rubber-like plastic for protecting the ear from loud noises, such as industrial machines, cutting machines and airplanes has a longer neck with a screw-like thread which conically tapers to a tip and is rounded

摘要

Earplug made from a rubber-like plastic has a longer neck (1) with a screw-like thread (2) which conically tapers to a tip and is rounded. A stopper (3) is formed at the end of the neck with a rotary handle (4) which is reinforced on both sides. The handle is in the form of a half moon.