Noise Cancelling Ear Plugs for Sleep – 70 Pairs – 38DB SNR – Custom Fit Soft Earplugs – for Studying, Meditating, Or Any Noisy Situation : Amazon.co.uk: Health & Personal Care
Halo Reusable Corded Earplugs, Yellow, 27db, Box of 50 Pairs, EN 352-2 9581700K | Cromwell Tools