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Offroam Double Socket Arm for 20mm Ball

Offroam Double Socket Arm for 20mm Ball

Regular price $19.95 USD
Regular price Sale price $19.95 USD
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Shipping calculated at checkout.


Questions? Text us at 415-592-7626 

Vehicle Compatibility

Phone Compatibility

What's in the Box

1x Offroam Double Socket Arm


Die cast and powder coated aluminium
Black oxide stainless hardware
Plastic thumbscrew


Questions? Text us at 415-592-7626


Custom designed to work with Offroam air vent clamp mounting base & Offroam phone holder system. With an overall length of 2.4" this is the is the lowest profile arm on the market. The short length reduces the stress on vehicle air vent, while keeping your devices in a perfect location without blocking the view of the road or the air flow. Adjust and reposition your system easily with an integrated adjustment knob.

  • Miniature profile design with an overall length of 2.4" and socket-to-socket length of 1.77" [45mm]
  • Attaches to 20mm ball component, including mounting bases and device holders
  • Double ball and socket design for full adjustability of your Offroam mounting system
  • Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty


Weight Capacity Normal Use: 2.2lb [1kg]

Weight Capacity Heavy Duty Use: 1.1lb [0.5kg]

Eye-to-Eye Length: 1.77" [45mm]

Overall Dimensions (LxWxH): 2.4" x 1.0" x 1.8" [61.7mm x 25.4mm x 45.5mm]

Download Engineering specifications: Download Engineering Drawing

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  • Fast Shipping

    Most orders placed by 11AM CST ship the same business day.

    Shipping Policy 
  • Hassle-Free Returns

    We will take back or exchange any product bought within 30 days of purchase

    Returns Policy 
  • Lifetime Warranty

    All Offroam products are guaranteed against manufacturer’s defects for an unlimited time.

    Learn More 
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Designed for rough 4x4 trails. Offroam clamp is patent-pending mounting base that attaches securely to your vehicle and won't fall off, even over rough 4x4 trails or race days.

For any phone, even with a case. Offroam fits and holds any size modern phone (including iPhone 14 Pro Max), even in a case. Up to 3.8" wide and 0.67" thick.

No drilling, no glue. You shouldn't need to drill your new truck. Offroam mechanically clamps to the air vent without leaving any marks thanks to an embedded elastomer liner.

All the airflow you need. Whether in south Texas or in Alaska - you need the air vents to function. Offroam keeps your phone away from the vent so air goes where it's aimed, not the back of your phone.

Keeps the view clear. Offroam gives you an easy way to position your phone so you can see it without blocking the windshield.

Customer Reviews

Based on 3 reviews
Doug Kensrue

Offers great alignment options

Mitchell McCarty
Customer Service

I can’t say enough about the customer service. My mount wouldn’t stay attached the the dash. I emailed and was promptly sent a new rubber strip and the new short arm within 3 days at no cost. These guys make the best mount and take care of their customers like no other. 100% satisfied!


I needed the smallest 20mm double socket I could find. This is perfect fit and quality. Well done, OffRoam.