The RAM Quick-Grip device mount is capable of holding a broad range of electronic devices. The spring-loaded mechanism and adjustable side keepers allow for a secure grip on your device. Whether it is a cell phone, GPS, Bluetooth speaker, or anything that fits within the dimensions of the cradle, your electronics will be secure. Rubber caps are included for additional support for the top and bottom fingers. Included is a B Size 1" ball and hardware. Some assembly is required. Cradle clamping dimensions: Height range: 4.75" - 5.75", Width range: 1.25" - 3.25", Max depth: 0.72".