• Compatible with Alpha(R), Approach(R), Astro(R), Colorado(R), Dakota(R), eTrex(R), GPSMAP(R), Oregon(R) & Rino(R) series;• Securely mounts portable GPS system to a boat or cart;• Attaches to any flat surface & adjusts for optimal viewing;• Requires screws; HEIGHT X LENGTH X WIDTH: 2.25 X 8.75 X 5.75 WARRANTY: PENDING RETURNABLE: Yes
