This works on everything from a large phone to a 15" tablet or laptop up to about 3/4" thick. I personally just screw it directly into my stand rather than use the clamp, but both ways work fine. I use mine with a 14" tablet and a 10.5" tablet on a regular basis.
Hola! Music HM-MTH Microphone Music Stand iPad Tablet Smartphone Holder Mount - Fits Devices from 6 to 15 Inch
Hola! Music HM-MTH Microphone Music Stand iPad Tablet Smartphone Holder Mount - Fits Devices from 6 to 15 Inch