3M 391 1004 Ear Plug Dispenser Refill, Bullet, 33 dB NRR, Uncorded, Roll Down, Disposable 52YT03 Red Shrink Tubing Kit Type Red Shrink Tubing Kit Type Heat Shrink Tubing Kit Shrink Tubing Material Polyolefin Shrink Tubing Wall Type Thin Wall Flame Retardant No Shrink Tubing Usable Temp Loop Calibrator Pairs Per Package 500 Compatible Dispensing System One Touch(TM) Item Ear Plug Dispenser Refill Color Yellow Series E A Rsoft Standards CSA Class AL Cord Options Uncorded Metal Detectable No Insertion Method Roll Down Earplug Color Yellow Earplug Pair Pack Type Loose Earplug Shape Bullet Earplug Material Foam Earplug Packaging Bulk Box Refill Type Cartridge Refill Compatible with Manufacturer Model Number 391 0000 Noise Reduction Rating 33 dB Reusability Disposable Includes Dispenser Overall Width 10 in