Few earplugs that are available in India are unbranded. These are made up of recycled, allergy causing materialsand have not been subjected any quality testing and their claims [if any] of Noise Reduction Rating [NRR] are not verifiable. SIMON'S are the first quality branded earplugs from India. These are made up non-toxic, non-allergic materials and are subjected to the most rigorous quality testing of EUROPE [CE], ANSI [U.S.A] and AUS/NZ [AUSTARLIA/NEWZEALAND]. SIMON'S have the highest possible NRR values available for similar materials.Moreover, SIMON'S area available in wide range for different customers/uses.