The RAM® Finger-Grip™ Universal GPS and Radio Holder works with a diverse range of electronic handheld devices. The four rubber coated fingers keep devices securely in place. KEY FEATURES Universal holder with flexible rubber-coated fingers to provide a secure grip of your device; fingers open by squeezing the ends Includes three sets of four rubber-coated fingers for different size devices as well as top and bottom optional device supports Compatible with RAM® Mounts B and C size diamond ball bases for attaching to double socket arms and mounting bases Backed by a lifetime warranty The RAM® Finger-Grip™ is a universal holder that can accommodate a wide range of devices including GPS, handheld radios, phones, Bluetooth speakers, and much more. Included with the holder are three sets of four flexible rubber-coated fingers to grip your device. The main backing plate consists of multiple slotted holes where any set of finger grips can be positioned to hold your device firmly. When positioned correctly, your device can easily wedge in and out of the holder; suited for any rough environment. Also included are two sets of optional top and bottom supports to add even more stability to your device if needed. The back of the RAM® Finger-Grip™ contains multiple 4-hole AMPS hole patterns for connecting to any RAM® components using the included set of nuts and bolts. Mount your handheld device virtually anywhere with the RAM® Finger-Grip™. See compatible device dimension ranges below.