HEAVY DUTY - With 4 points on contact on your device and spring loaded grip, it's easy to insert and remove. Included with the holder are 10 support legs (4 short, 2 medium and 4 long versions) UNIVERSAL DESIGN -Compatible with all 7'-18.4' Includes 10 adjustable support legs that can be adjusted to keep any side buttons and ports unobstructed. For most large tablets, we suggest using 2 short support legs on the top and 2 long support legs and the bottom of the tablet holder. For smaller 7" tablets, we suggest using all 4 small support legs. ADJUSTABLE - Rotates 360 degrees for optimal viewing positions. Place tablet in holder in a horizontal position and rotate holder at the adjustable ball joint to view in a vertical position. Suction cup mount extends from 5"-7" and adjusts vertically 180 degrees. INCLUDES- Heavy Duty Suction Mount, Dash Disc, and Easy to install adjustable Tablet holder. (4 short, 2 medium and 4 long versions)). U.S. Pat. No. 6,585,212