Foam earplugs: 1,Non-toxic,Comfortable 2,Waterproof ,Anti-noise 3,Environmental protection 4.Made of 100% silicone ... Foam earplugsDescription:1>Made of 100% foam with FDA and ROHS approval;2>Bowl shape to fit the ear canal ... -toxic,Smooth,dirt resistant,Softly,Waterproof and Environmental protection;4>More colors and fashion designs are available;5>Well and high quality assurance;6 ...