I think he mean an o-ring.Its a little rubber ring that usually makes things air tight.
Don Don Reviewed by Don Don on . Rubber band on slide Ok so I took the rubber band off my slide to clean it and placed it on the couch arm. Forgot about it, then remembered and its not there (or around). I've given up for now, but my questions are : Is it important? and if so, if I can't find it, what's the name and such and is it typically available in a headshop? Thanks in advance. Rating: 5