The spring-loaded phone holder is equipped with adjustable side supports that provide a secure fit for various types of phones and other devices. Simply insert and remove the phone with one hand. It is compatible with RAM® diamond ball bases for attaching to double socket arms and mounting bases. This version of the spring-loaded RAM® Quick-Grip™ holder provides a secure fit for a variety of large phones and other devices. The adjustable side keepers ensure that devices like GPS units and Bluetooth speakers within the listed compatible dimensions will also fit in the holder.Features:Height Range: 14.61 cm - 20.96 cmWidth Range: 6.67 cm - 9.21 cmMax Depth: 1.83 cmHole pattern: 2-Hole AMPS: 4.84 cmMaterial: High strength compositePackaging type: Poly BagWeight: 0.11 KgPackage content:Assembly Hardware(2) #8-32 x 1.27 cm Machine Screws(2) #8-32 x 1.59 cm Machine Screws(2) #8-32 x 1.91 cm Machine Screws(2) #8-32 Nylock NutsMade in: United Kingdom