https://amzn.to/3D5kBj5 50-Pair Flents Quiet Time Foam Ear Plugs for Sleeping, Snoring, Loud Noise, Traveling, Concerts, Construction, & Studying (NRR 33, Purple) on sale for $10.77 - 5% off when you checkout via Subscribe & Save = $10.23. Shipping is free w/ Prime or on orders of $35 or more.