1 pair in tube with chain.
These are the most comfortable in ear foam plugs available.

These shaped ear protectors are made from closed cell foam that is hygienic and more efficient than conventional material.

Impressive rating of SNR 37.

Supplied in handy key chain tube, that can be attached to keys, belts or bags.
Made to BSEN 24869-1-1993 ISO 4869-1990