Lightweight and adjustable ear defenders with flexible headband and double-layered foam ear cushions. Conforms to EN352-1:2002. Protection levels: H=26dB M=18dB L=11dB SNR=21dB.Product Details Lightweight and adjustable ear defenders with flexible headband and double-layered foam ear cushions Conforms to EN352-1:2002 Protection levels: H=26dB M=18dB L=11dB SNR=21dB Single Number Rating (SNR) 21dB Double-layered foam ear cushions Lightweight with flexible headband fits most head sizes Protection levels: H=26dB M=18dB L=11dB SNR=21dB Conforms to EN352-1:2002 We deliver Silverline Lightweight Compact Ear Defenders SNR 21dB worldwide.We specialise in shipping almost anywhere in the world securely at competitive prices - across UK, US, Canada, Ireland, New Zealand, Europe - securely and fast at competitive prices