Sponge Earplugs In Storage Cases

Made of Super Soft and Non-toxic PU Foam (Latex free and PVC free); Slow rebound foam material fits different ear canals and have no pressure on ear. They are two different rating systems; High noise reduction rate ear plugs can meet the needs of noise reduction in different occasions. Great for Sleeping, Working, Studying, Shooting, Travel or any environment you need quiet.