Noise Cancelling Earplug

Type: NC-3
Spec.: D: 1.5CM H: 2CM
Weight:2G
Explain:
This earplug is made of slow rebound sponge. It can reduce the interference caused by noise. The noise canceling earplug can be used in many noisy areas, such as airport, mine, factory workshop, etc. It's a good choice for the elderly and insomnia.