Pretty cool system, however my cup holder had a removable insert that just kept coming out. So i pulled out the insert and 3D printed a tapered reducer insert and now all is well.
My windscreen was too small and I didn't know where else to mount my mini tablet. this little base (plus an arm and the UN8BU cradle) works perfectly in my car. I can bend it to face the backseat and have my passengers watch sport while I drive (I drive Uber).
Glad I got this cup holdr mount for my car. I connected my phone to it with the UN7BU xgrip. silly me forgot the arm I needed to connect though, don't forget like me. Get the RAM-B-201U or something similar with it.
does the job
mounted it my car cup holder cos ive already got a windscreen mount for a camera. I use this for maps, but may switch my mounts around and put maps up on the windscreen - seems safer.
|Ball Sizes||Short Arm||Medium Arm||Long Arm|
|A Size||Overall Length||N/A||2.11" / 53.6 mm||3.57" / 90.7 mm|
|Socket-to-Socket||N/A||1.67" / 42.4 mm||3.12" / 79.3 mm|
|Overall Length||2.42" / 61.5 mm||3.73" / 94.7 mm||6.00" / 152.4 mm|
|Socket-to-Socket||1.75" / 44.5 mm||3.00" / 76.2 mm||5.31" / 134.9 mm|
|C Size||Overall Length||3.56" / 90.4 mm||5.69" / 144.5 mm||9.13" / 231.9 mm|
|Socket-to-Socket||2.50" / 63.5 mm||4.66" / 118.4 mm||8.00" / 203.2 mm|
|D Size||Overall Length||5.10" / 129.5 mm||8.44" / 214.4 mm||12.98" / 329.7 mm|
|Socket-to-Socket||3.60" / 91.4 mm||6.88" / 174.8 mm||11.41" / 289.8 mm|
|E Size||Overall Length||7.31" / 185.7 mm||12.63" / 320.8 mm||N/A|
|Socket-to-Socket||4.98" / 126.49 mm||9.88" / 251 mm||N/A|