Hugh Plugz foam earplugs offer excellent noise reduction, making them highly suitable when sleeping or relaxing. They are also great when travelling, studying, for DIY, spectators at motorsport evenets and help to prevent ear discomfort during outdoor recreation. WARNINGS: Use only as directed. Performance may be reduced if instructions not followed. Store earplugs in orginal pack. Do not wash or reuse. Dispose after use. Suitable for domestic use only. Keep out of reach of infants when not in use. This product may be adversely affected by certain chemicals.