RAM Mount RAM Composite Universal Marine Electronic Mount [RAP-B-111U]

RAM® Composite Universal Marine Electronic MountThe RAP-B-111U consists of a 2″ x 2.5″ rectangle base, STANDARD length double socket arm and 6.25″ x 2″ rectangle plate. The rectangle base contains pre-drilled holes, including the universal AMPS hole pattern. The 6.25″ x 2″ rectangle plate contains different combinations of pre-drilled holes which will match up to many electronic devices and mounts, including Marine GPS, CB Radios, Ham Radios, Gimbal Brackets and more. Specifications:
Overall Height: 5″
Socket-to-Socket Length: 3″
Hole Pattern: 4-Hole AMPS: 1.181″ x 1.496″
Plate Size: Top Plate: 6.25″ x 2″, Bottom Plate: 2″ x 2.25″ 
Ball/Socket Size: B Size (1″)
Weight Capacity: 2lbs
Materials: High Strength Composite