Spring-loaded holder secures 9" tablets with heavy-duty cases; interchangeable end cups allow you to modify the holder when upgrading devices Compatible with B and C size RAM round ball bases for attaching a double socket arm; ball and socket technology allows for near-infinite adjustability Made of high-strength composites for durability and reliability in the most demanding environments Holder Dimensions: Height Range: 9.5" - 12.125", Width Range: 6.55" - 7.43", Depth Range: .3" - .875" Backed by a lifetime warranty