Howard MXM 30G Ear Plugs, Bell, 33 dB NRR, Gen Purpose, Corded, Disposable, Roll Down, 100 PK 24T866 222 lb Operating Temperature 222 lb Operating Temperature Maximum 400 Degrees F Core Type Solid Operating Temperature Minimum 0 Degrees F End Type Plain Ends Shaft Type Solid Shaft Series NIL Country of Origin United States such as valves Band Material PVC Earplug Size Universal Noise Reduction Rating 33 dB Earplug Color Orange Reusability Disposable Cord Options Corded Earplug Shape Bell Earplug Material Foam Pairs Per Package 100 Series MAXIMUM Metal Detectable No Cord Color Blue Cord Material Hearing Protection PVC Band Material Hearing Protection PVC Insertion Method Roll Down Standards ANSI S3