Increase compliance by installing PlugStation dispensers in the locations around the job site where ear protection in needed most. Each dispenser contains 250 pairs of soft, lightweight SparkPlug earplugs. Simply twist the handle on the dispenser and a pair of of 100% PVC-free, NRR 33-rated earplugs drop into your hand. The high-visibility dispenser provides increased awareness for workers in high noise areas of the ear protection program. Each dispenser is sealed to provide clean, hygienic ear protection every time. The dispenser is recyclable, and the earplugs are independently tested to ANSI S3.19-1974 standards. Moldex SparkPlug have a tapered shape to more easily fit into the ear canal. They seal gently and provide superior noise protection. They are also the Officially Licensed Earplugs of NASCAR.