3M 390 1262 Ear Plugs, Bell, 33 dB NRR, Uncorded, Roll Down, Disposable, M Earplug Size, Orange, 500 PK G2478296 Tubes Marking Tip Shape Round Tubes Marking Tip Shape Round Specialty Environment or Surface Conditions Rough Surfaces Pigment Permanence Permanent Glow in the Dark No Color Family Yellows Grade Scanner Compatibility Not Applicable Minimum Application Temperature 50 Degrees F Tip Protection Type Not Applicable Pigment Maximum Surface Temperature Not Applicable Maximum Application Temperature 150 Degrees F Pigment Minimum Surface Temperature Not Applicable Product Type Paint Crayon Indoor Outdoor Usage Indoor Outdoor Application Temp These universal covers can house any NEMA listed straight blade receptacles as well as any NEMA listed Twist Lock® receptacles Noise Reduction Rating 33 dB Earplug Color Orange Reusability Disposable Cord Options Uncorded Earplug Shape Bell Earplug Material Foam Pairs Per Package 500 Series E A Rsoft FX Metal Detectable No Noise Reduction Rating NRR 33 dB Insertion Method Roll Down Standards ANSI S3 Standards ANSI S3