RAM Mounts' RAP-299-3-UN10U consists of the RAM-A-CAN(TM) cup holder base, double socket system, and universal spring loaded X-Grip cradle for 5 in large phones and phablets. Included are support fins that flex, making the cup holder base conform to most vehicle cup holders. The mount is designed with a RAM 1 in diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. The spring-loaded X-Grip cradle expands and contracts, allowing for a perfect custom fit of your 5 in phone or phablet. Included are easy access grip knobs for quick insertion and release of your handheld device. The X-Grip includes a device tether recommended for outdoor applications. The cradle is compatible with handheld devices that will fit the dimensions listed below. It is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size.