... SGS,ROHS,FDA 1.Details specification : Name :Prevent noise earplugsModel :MT-A800Material :Sponge,siliconeSize :Φ1.5cm, length ... Flexible,non-toxic,non-irritant.Superiority:Carry convenienceFunction :Waterproof ,Noise cancellingUse:HotelStyle :Roll ,insert ,holdPacking :Standard or as ... receive a depositDescription :This product is mainly prevent noise,go traveling carry convenience ,you should rest ...