This is a custom machined under dash backing ring for the FX Waverunner cup holder mounts. It is made out of 1/4″ thick black marine grade U.V. stabilized plastic and has a black matte textured finish. It is used in combination with my custom machined cup holder mount for the 2018-2012 Yamaha FX Waverunners and is recommended when mounting 7-9” chartplotters.
Please Note: This item only ships with the purchase of a matching 2018-12 FX cup holder mount. Existing customers may contact me via email for a price and shipping information.