The RAM-111-D consists of a 2.5' diameter round base that contains the universal AMPs hole pattern, LONG LENGTH double socket arm and 6.25' x 2' rectangle base.
The rectangle base 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.Product Weight: 2.57 lbProduct DimensionsOverall Height: 10.85'Socket-to-Socket Length: 8'Hole Pattern: 4-Hole AMPS: 1.181' x 1.496' 3-Hole 120-Degree: 1.812' Diameter See DrawingBall/Socket Size: C Size (1.5')Weight Capacity: 4 lbsMaterials: Marine-grade aluminum..