The ProGear Noizezz Reusable Universal Ear Plugs are universal low profile design ear plugs which are virtually impossible to see when fitted correctly.Kit contents (Ear Plugs):2 x Small2x Medium2 x Large2 x X-LargeThe ProGear Noizezz Reusable Universal Ear Plugs have a unique filter which preserves speech intelligibility, music and essential warning alerts can still be heard. They are able to provide a safe acoustic environment and ultimate protection that will prevent hearing loss, tinnitus and other problems associated with exposure to high noise levels.Each set comes with 4 sets of micro-finned, curved soft silicon ear tips designed to match the contours of the ear canal. The ear tips are supplied in S, M, L and XL making them simple to insert and comfortable to wear for long periods of time.Noizezz are available in four levels of hearing protection:Purple - SNR 17dB - gives a lower level of hearing protection. Noizzez purple can be used when flying to help relieve cabin pressure a