267 HPDR810 250 Prefilled Mega Bullet Plus Ear Plug Refill Canister 33 NRR 250 Pairs Safety Helmets Breathable microporous material that protects F694 2XT Breathable microporous material that protects against dry particulates and liquid sprays reversible pattern Nylon fabric absorbs perspiration and keeps hands comfortable Stretch fabric provides limited heat protection Rolled hem helps sheds less lint Cotton color binding denotes sizes Prefilled Refill Canister for 267 HPD810 250 includes 250 Pair of Mega Bullet Plus Ear Plugs Controlled release mechanism ensures the correct number of plugs are dispensed into a collection tray Sufficient capacity to supply large production areas Transparent design to monitor the number of earplugs remaining