With this duo-pack edition of the fine Ear-Q ear plugs, you'll get four ear plugs nicely wrapped up in a metal box. In this deal, you'll have an extra set of ear plugs in the rehearsal room, or if you're the type of person who often loose your stuff.
About the Ear-Q Ear Plugs:
The Ear-Q Ear Plugs are manufactured in the Netherlands and they are a great product for a small price. For only 22,50 EUR you'll get a comfortable set of ear plugs with built-in acoustic filter. Commonly, this type of filter belongs among the expensive sets of ear plugs, so this is a great bid for a set of ear plugs.
EAR-Q gives you the following benefits:
The membrane on the Ear-Q's acoustic filter has the largest surface possible. This enables a great inward airflow which reduced the occlusion effect to a minimum 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.