Amzer AMZ93345 Heavy Duty 4-Inch Tablet Mount New innovative, adjustable tablet holder fits any tablet 7 to 12-Inch with or without a case or Silicone or TPU skin. 4 Inch with C-clamp base for table, counter, post and rail mounting. For use on carts, wheelchairs , strollers, dollys, fork lifts, and more. Features spring-loaded universal tablet holder. Fits nearly all vehicles having 2 post headrest configurations. Fits tablet even when used with protective skin or sleeve on it. No Tools required easy install. Compatible with all 7 - 12 Inch Tablet and eBooks with or without Covering.