3M E-A-Rsoft Yellow Neons One Touch Dispenser Refill produces uncorded foam earplugs and offers a low pressure seal. Earplugs seal the ear canal with soft foam for remarkable noise reduction and comfort. Earplugs insert easily and can be expanded inside the ear canal for maximum comfort. It stimulates full compliance and the bright neon yellow look makes compliance checks easy. Plugs are made of polyurethane foam which offers great attenuation along with low pressure comfort and provides the highest noise reduction rating at 33 dB.