Ear Plug Dispenser Refill, Product Type Dispenser Refill, Noise Reduction Rating 30 dB, Insertion Method Roll-Down, Reusability Disposable, Earplug Shape Cylinder, Earplug Pair Pack Type Loose, Earplug Size M, Pairs per Package 800, Earplug Color Orange, Metal Detectable No, Refill Type Refill, Cord Options Uncorded, Earplug Material Foam, Standards OSHA CFR 1910.95, Compatible Grainger Part Number 55TA92, Compatible with Manufacturer Model Number HL400-FF-INTRO