The wide range of phone holder is 58mm-100mm(2.28-3.9inch), compatible with smart phones of various size ( XS Max XR Se 8 7 6 6s Plus Galaxy S9 S8 S7 S6 ).Just adjust the height of the clamp to get the right fit for your phone.Back screw easy control the cell phone tripod adapter , which support Horizontal and vertical mode make it perfect for any angle requirement.Non-slip rubber and tilt angle protect phone very well so will not damage the cell phone.The adjustable clamp has screw secure on the top make install much easier.Features:Works with all current smartphones on the market with or without a caseAdjustable clamp height between 58mm - 100mmUses industry standard 1/4 inch - 20 mountsLets you rotate your phone vertically (Portrait) and horizontally (Landscape)Guides located on the back to assist with horizontal or vertical positioningcolour:BlackMaterial:ABS+metalPackage Contents:1 x Phone Rotating clampOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.