H20 Metal Detectable Reusable Earplugs Corded, Plastic, Blue, Corded no checkout [Nom] 4 1 2 in Grit 24 [Nom] 4 1 2 in Grit 24 Hardness Grade N Hazmat NO Jan San Catalog NO Prop 65 YES Quantity 50 per carton Quarterly Flier NO Special Order NO Speed [Max] 13300 RPM Stock Status In Stock Thickness [Nom] 1 4 in Tool Shape Type 27 UNSPSC 31191500 Used With Air & Electric Grinders Welding Catalog NO Wt durable aluminum oxide abrasive for heavy duty work comfort and reliable performance Features metal embedded in the earplug for easy detection Three soft flanges are designed to conform to ear canal Washable and reusable Provides protection