Ear Protection Max 1D SNR 33DB-Ear Plug Posted on November 28, 2012 by admin Ear Plug Max 1D SNR 33 DB Ear plug Max 1SNR 33 DB, Made of Soft Foam Colour Yellow, Packing 500 pairs/box admin Safety Ear Plug E.A.R Ultrafit 340-4004 Ear Muff , NRR 26dB