The RAM-HOL-TAB29-CUPSU includes (2 qty) RAM® Tab-Tite™ cup ends and hardware. The interchangeable support cups can be used with all RAM® Tab-Tite™ and RAM® Tab-Lock™ mounts. Hardware is included to attach the cup ends to the backplate. Cradle Dimensions:Height: 8.25" to 11" Width: 5" to 5.88" Depth: 0.3" to 0.67"