ARKON Heavy Duty 4-Inch Adjustable C-Clamp Mount for Trident Kraken A.M.S. Series Smartphone and Tablet Cases (AMS086) Only compatible with Kraken A.M.S. Series Cases for Smartphone and Tablet 360 degree rotation for landscape or portrait viewing 2.5" c-clamp opening allows for easy and secure attachment to a variety of surfaces 2 Year Warranty