1.5" Ball Double Ball Extension Adapter

Extend your mount setup with a second ball connection point. The 1.5" Ball Double Ball Extension Adapter is a compact aluminium connector featuring a 1.5" (38.1mm) C-size rubber ball at each end. Plug it into any standard double socket arm, and you gain an additional ball for attaching a second arm, device holder, or any other C-size component.

Whether you need to bridge two arms, create a Y-junction for multi-device configurations, or simply add an extra pivot between components for better articulation, this adapter makes it possible without any permanent modification to your existing setup.

Key Features

• Dual 1.5" C-size rubber balls: One at each end — each connects into a standard C-size double socket arm.
• Marine-grade aluminium body: Lightweight yet strong, with excellent corrosion resistance for marine and outdoor use.
• Rubber + nylon ball heads: Composite material provides both grip and durability — tough against compression and bending without deforming.
• 360-degree rotation: Each ball head rotates freely within the socket arm for full universal positioning.
• Compact design: Overall length of 106mm and weight of just 102g — adds minimal bulk to your setup.
• C-size compatible: Works with all 1.5" ball mount systems including RAM-compatible components.

Specifications

• Ball size: 1.5" (38.1mm) C-size
• Overall length: 106mm
• Weight: 102g
• Material: Marine aluminium body, rubber + nylon ball heads
• Compatibility: All 1.5" C-size double socket arms

In the Field

Need a second pivot in a long arm run for better positioning around an obstacle on your 4x4 dash? Insert the double ball adapter between two arms. Want to branch a second device off an existing arm on the boat console? Plug the adapter into a spare socket and run a second arm from it. The marine-grade construction means it handles salt spray and harsh conditions without issue.

Part of the Modular Mount System. Ships Australia-wide.