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Arm | 7" Long | Dual 20mm Sockets | Expandable Elbow Joint

48 reviews

This arm measures 7 inches from end to end when fully extended and will accept a 20mm ball on both ends.

Buy it now - Use it forever - Lifetime Guaranteed



At Tackform, we are committed to providing you with top notch support.
If you have any questions or concerns about your order, please don't hesitate to reach out to our knowledgeable support technicians.

Our customer support team is available Monday through Friday 9:00 AM - 5:00 PM.


How long will it take to get my order?

  • USPS and Ground orders ship the same or next business day.
  • FedEx Express orders placed before 2 PM CST will ship same business day.
  • International orders, wholesale, and large bulk orders ay take an additional 1-2 business days for processing.

What shipping carriers do you use?

  • USPS
  • FedEx

Where do you ship from?

  • Tackform HQ (Addison Illinois 60101)

Can I return my product?

Of course, Tackform has a flexible 30 day return policy. You can find the full details by clicking here -> RETURNS


If we still haven't answered your questions, you can contact us below and we will get back to you as soon as possible.

"We're dedicated to providing you with the best possible shipping experience and we're here to help you in any way we can. Thank you for choosing Tackform. We look forward to serving you"

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Customer Reviews

Based on 48 reviews
David M. (South Bend, US)
Elbow joint

Great product! Installed in on my BMW K1600 GTL, works great and looks fantastic! Had to make one return because I ordered the wrong size and the team at Tackform handled my return quickly and correctly! Thanks for making such an awesome product!

jesse s. (Calhoun, US)
Multiple adjustments

I recently purchased 7" version to use as a mount holder. I can say that being able to adjust in 3 ways as well as turn. Basically 6 axis. This gives multiple adjustments as well as angles of movement. This allows endless possibilities. Would highly recommend.

Rusty T. (St Louis, US)
Tackform products are outstanding

I first purchased a Tackform magnetic phone mount several years ago for my previous truck and was very happy with the mount's performance. So when it was time to add mounts in my new truck for a TPMS monitor, Garmin GPS and Furrion rear observation camera monitor, I returned to Tackform (after considering others). I have a Builtright dash mount in mount truck and bought several Tackform products to mount the aforementioned items to it. Tackform products provide the needed reach/strength/flexibility and are solid when driving/towing. No more suction-cup mounted stuff on the windshield! I would highly recommend these products to others.

Clint (Salt Lake City, US)
I am very happy with it

This mount is everything I was wanting. Very rigid and yet easy to manipulate to the position I prefer. It looks like it is very well made and should last a very long time.

JAY (Sacramento, US)
Very nice

I like it.