... treatment 3,wearing health,safety,rebound Ear plug with metal case Hot sale gift 2012 - Fluorescent ... effective,SNR:33DB, This earplug can be washed with water, reuse. Name Material Model standard earplugs slowPU ... The other hand will be brought out stuffed up ears (this is important) and hold, then rub ... the small earplug round towards ears, stuffed them; 3. Hand on earplug until the ...