RAM Mount 1.5 Inch Ball Double Socket Arm with 2.5 Inch Round Base
The RAM Mount RAM-103U mount, with standard arm, consists of the 1.5″ diameter ball and socket system with one open socket end. This mount is designed to be used with any of the RAM mounting bases or cradles with a 1.5″ diameter rubber ball. The RAM-202U round base has a 1.5″ diameter rubber ball connected at right angles to a 2.5″ diameter base. The plate has pre-drilled holes in the base, including the universal AMPS hole pattern.
Material:
Powder Coated Marine Grade Aluminum
Ball Size:
1.5″ Rubber Ball Size
Note:
The “U” in the part number reflects product packaged in poly bag.

![RAM Mount 1.5" Diameter Ball Flat Surface Mount w/2.5" Round Base & Diamond Base [RAM-138U]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-1-5-diameter-ball-flat-surface-mount-w-2-5-round-base-diamond-base-ram.webp)
![RAM Mount Composite Surface Mount w/6.25" x 2" Top Plate [RAP-111U]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-composite-surface-mount-w-6-25-x-2-top-plate-rap-111u.webp)
![RAM Mount Composite Socket Arm w/2 Diamond Bases [RAP-B-102U]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-composite-socket-arm-w-2-diamond-bases-rap-b-102u.webp)
![RAM Mount Ball Mount w/Long Double Socket Arm & 2-2.5" Round Bases w/AMPs Pattern [RAM-101U-D]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-ball-mount-w-long-double-socket-arm-2-2-5-round-bases-w-amps-pattern-r.webp)
![RAM Mount 4.75" Square Base VESA 75mm & 100mm Hole Patterns w/Surface Mount - 1.5" Rubber Ball Size [RAM-101U-246]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-4-75-square-base-vesa-75mm-100mm-hole-patterns-w-surface-mount-1-5-rub.webp)
![RAM Mount Short Double Socket Arm w/2.5" Round Base [RAM-B-103U-A]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-short-double-socket-arm-w-2-5-round-base-ram-b-103u.webp)
![RAM Mount 3.625" Square Base VESA Plate 75 x 75mm Hole Pattern w/Surface Mount [RAM-D-101U-2461]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-3-625-square-base-vesa-plate-75-x-75mm-hole-pattern-w-surface-mount-ra.webp)
![RAM Mount 3.625" Vesa Plate w/75 x 75mm Hole Pattern and Short Arm Surface Mount [RAM-101U-B-2461]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-3-625-vesa-plate-w-75-x-75mm-hole-pattern-short-arm-surface-mount-ram-.webp)