Tackform 20mm Aluminum Ball to 17mm Ball Adapter Compatible with Garmin and Other GPS Devices with 17mm Balls

Snaps right into my existing cellphone mount. Seems 17mm is the standard size. The products are absolutely first class. Fit and finish is excellent. Function is flawless. Customer service is just without peer. I won't bother to mention why I contacted customer service, because it's kind of dumb, but I can tell you that Tom (everybody raves about him, and they are right) not only resolved my issue, but when I mentioned an unrelated issue he shipped a product to me for free to address the problem. Just not enough good things to say. Customer for life. No, this isn't a sponsored review. It's just that for the last two-plus years it has been so rare that anyone, anywhere actually puts out a great product at a good price and executes outstanding customer service that I am more than happy to shout it from the rooftops. TL;DR - Freakin baller. Amazon comment reviewer: I'm going to post this comment on multiple products. Please don't flag it as a dupe.

ビートソニックの球形マウントは20ミリでエアコン吹き出し口等に取り付けるMagSafe充電器は通常17ミリなのですが、この両者オス・メスが逆になっているので必ず必要になります。

Beat-SonicのS660用スマホスタンドのボールジョイントに使用。 市販お気に入りのホルダー(ジョイント部:17mm径)を装着しましたが、がたつく事もなく満足です。

I used this to adapt a ESR MagSafe charger to a standard ball-arm. Works perfectly and seems well machined. Super happy with my setup and would buy again if needed.

This product is awesome. It performs very well and when added with their other products it was exactly what I needed for my needs. As pictured I used it for my cell phone, garmin, and for my forward road camera on my rv dash. The trackform 20mm Aluminum Ball to 17mm Ball Adapter measures approximately 1 11/16”(1.6875”) in length. (the ends are flat) Center ball to Center ball approximately 1 1/8”(1.125”) in length. The ball adapter is aluminum and has a slight texture from machining which helps when tightening everything down. None of my equipment moved from their starting position during my driving trip. Once your tighten everything down the ball adapter stays in place. I use the Trackform arms as well. For the price. I already have purchased three and see myself buying more in the future.