Replacement Ear Plug Pods, Noise Reduction Rating 24 dB, Earplug Shape Bell, Insertion Method Push-In, Reusability Reusable, Cord Options Uncorded, Earplug Size S, Earplug Material Vinyl, Earplug Packaging Bulk Box, Earplug Pair Pack Type Plastic Bag, Includes (50) Pairs in Zip-Top Bag, Series BattlePlugs(R), Standards ANSI S3.19-1974, Earplug Color Yellow, Metal Detectable No, Compatible Grainger Part Number 52ZV37, Compatible Manufacturer Model Number 6497, For Use With Mfr. No. 6487