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 Made of high strength composite Backed by a lifetime warranty Compatible with: 2-Way Radios, Amcrest,BaoFeng,Midland,Venterior,Wouxun,Yaesu,Garmin Alpha 100,Astro 900 System;Delta Sport XC,Upland XC,XC;eTrex Touch 25,Touch 35,Touch 35t;GPSMAP 66 Series;inReach Explorer+,SE+;PRO Control,Sport PRO