Flesh Color Foam Ear Plugs for Sleeping – 60 Pairs 38dB SNR Noise Reduction E…
They are different because the way they are tested is different.
LYSIAN Slim Fit Foam Ear Plugs for Small Ear Canals, 100 Pairs 35Db SNR Noise Re
Manufacturer LYSIAN. Soft Slow-Rebound Foam for All-Night Comfort: Made of soft PU foam, latex free and PVC free, these small ear plugs expand slowly to fit comfortably in small ear canals without strong pressure.