With the Moldex Plug station you can afford to put earplugs in all the places they are needed. That`s because you pay only for the earplugs, not the dispenser. Plug station is easy to take care of. You don?t refill it, you just throw the dispenser in a recycling bin and mount another plug station. And there's no more paper or poly bag mess all over the place. 500 pairs of Sparkplug earplugs (no cord) per dispenser. NRR 33 dB.