Alpine Hearing Protection - MusicSafe PRO Earplugs for Musicians - GREY You will receive (1) package of Grey MusicSafe PRO Earplugs for Musicians by Alpine Hearing Protection Dual-Flange Silicone Design for maximum comfort and a great acoustic seal that fits most adults. Thermo-Reactive silicone rubber material that softens at body temperature for an unusually comfortable fit that is ideal for extended wear. Low-profile Stem Design for a less noticeable appearance on stage, at the concert, at the club, or in the office. Interchangeable acoustic filters that let you choose the level of attenuation you need in each specific situation.