Arkon's Universal Heavy Duty Seat Bolt Rail Mount for Tablets features an innovative holder that adjusts to fit any 7" - 12" tablet and a 22" adjustable mount. The mount is extremely heavy duty.  Swivel adjustments at the base and holder as well as a third adjustment in the middle.  This comes with three different seat bolt attachments for varying configurations.

The 22" length is one of the longest available and perfect for SUVs, pickups, and cars.

Fits many models including:

Acer Iconia A100

aPad

Apple:  iPad, iPad2, iPad 3 (The New iPad), iPad Mini

Acer Iconia A500

Amazon Kindle Fire

AOC Breeze

Archos: 101, 70

Asus EEE Pad Transformer, Transformer Prime

BlackBerry PlayBook

eLocity A7

Google Nexus 10

HP: Slate, TouchPad

HTC Jetstream

Lenovo IdeaPad

LG G-Slate

Microsoft Surface RT, Surface Pro

Motorola Xoom and Xoom 2

Nextbook: Next2, Next3, Next5, Next6, Premium7, Premium8, Premium8se, Premium9

Samsung Galaxy Tab, Samsung Galaxy Tab 2 7.0, Galaxy Tab 7.0 Plus, Galaxy Tab 7.7, Galaxy Tab 10.1, Galaxy Tab 2 10.1, Galaxy Tab 8.9, Series 7 Slate, Note 10.1

Sony Tablet S

SuperPad

Toshiba Thrive

Velocity Cruz T301

ViewSonic: gTablet, ViewPad 10, ViewPad 7

Vizio 8