Product Description: Name:Professional noise-cancelling earplugs Material:Nano Silicone Quantity:A pair Color:Gray2,Gray3,Black2,Black3 Size:9CMX9CMX5CM Specification:1.7cm*1.4cm Unique Product Design: 1. Shark fin design Prevent falling off comfortably and firmly 2.160° ear design Sleep without gurgling 3. Oval 3-layer structure Noise reduction effect increased by 30% 4. The material is selected from the German nano silica gel Make the earplugs not sticky to gray, and feel delicate
