These Ear-Q Ear Plugs are manufactured in the Netherlands and they are a great product for a small price. For only 12,50 EUR you'll get a comfortable set of ear plugs with built-in acoustic filter. Commonly, the acoustic filters belong among the expensive sets of ear plugs, so this is a great offer for a set of ear plugs.
Ear-Q Ear Plugs give you the best advantages:
The membrane on the Ear-Q’s acoustic filter has the largest surface possible. This enables a great inward airflow which reduces the occlusion effect to a minimal level (i.e. it reduces the hollow and cooped up sound when the outer part of the ear is closed up).
In other words, Ear-Q Ear plugs give you a great value for the money.