To ensure sufficient stock of suitable hearing protectors is available: Howard Leight offers two convenient ways to keep your dispenser full. Choose pre-filled canisters of 400 earplugs: or zip top bags of 200 earplugs to refill the dispenser. Earplug dispensers offer a cost-effective solution to outfitting many workers with hearing protection: saving money while eliminating waste. The canisters are a level 7 blow-molded recyclable plastic: which can be recycled just like a water bottle: making it an economic benefit. To be more environmentally friendly: choose the zip top bag of earplugs: and refill your stock by reusing the canister.