Ultra-Soft Comfort: The unique, breathable memory foam is activated by body heat to provide all-day comfort without in-ear fatigue and irritation. Superior In-Ear Protection: Foam Plugs protect against damage to the ear from continuous harmful exposure to loud or extreme noise. Hi-Fidelity Retention: Foam Plugs keep music and speech clear without muffling the sound. Secure Fit: The Tips on these plugs use memory foam to gently seal the ear canal to create a custom fit for increased retention. 1000pcs/opp bag any logo can print on the package can be custom according to client's request. 20000pcs/ctn carton size:38*33*25cm