Cannula & Tubing Help

My dad has recently started using his concentrator 24/7. One of his main annoyances is how to keep the tubing snug under his chin. After a few days, the piece mounted on the tubes for this purposes starts to lose its grippiness and he’s forever tightening it up. I’ve tried to search online but seem to come up with every other kind of clip but nothing to address this.

Also - does anyone have experience with any of the tubing reels available that work with a small remote control to let out/reel in long tube lengths?

Thank you!!