These Moldex 6840 Mellows come with a convenient cord that allows workers to hang them around the neck when they don’t need to use the earplugs. The cord reduces the risk of dropping them on the floor or losing them during breaks. Featuring a high NRR 30 rating, the Mellows provide high quality hearing protection in the noises of environments. Designed to be small and light, you won’t mind wearing them all day. You might even forget they’re there!