Never lose your earplugs again with Caldwell Range Plugs featuring integrated cord and clip. Caldwell designed these Range Plugs to have tapered shape, made of polyurethane foam to make them easy to insert and comfortable for hours of use. The cord can be used in conjunction with the provided clip to snap on the back of your hat or the collar of your shirt so you always know where your ear plugs are. 31dB Noise Reduction Rating.