Tactical Ear Gadgets Black Audio Tube is a replacement black acoustic audio tube with tube quick release, elbow and bud.
Keep them on hand in case you loose or damage one. Or if you end up sharing equipment and with a coworker who has particularly greasy ears you can be sure to have your own ear piece.
Clear replacement tubes also available.
Earphone Connection Black Audio Tube
WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov