Our 20mm to 17mm double ball mount allows you to mount your Garmin or other 17mm ball compatible device holders. The 20mm ball end attaches directly to any of our carbon fiber arms.
Each kit includes the following
- 1 Complete CNC Aluminum 20mm to 17mm double ball mount ball mount with matte anodize finish
- Lifetime warranty against manufacture defects and workmanship
- California residents WARNING: Cancer and Reproductive Harm