Howard Leight Maximum Single-Use Uncorded Earplug MAX-1 Class 5 (Box Of 200 pairs)The worlds most used polyurethane foam earplug Bell shape delivers maximum in ear comfort Contoured design easier to insert, resists tendency to back out of ear canal Polyurethane foam enhances comfort, especially for long term wear Smooth, soil resistant closed cell foam skin prevents dirt build up Uncorded Earplugs 1 pair per Pouch, 200 pairs per box Recommended Industries Use Agriculture Chemical Construction Fire Protection Forestry Government Law