Mounts to your vehicles seat rail with no drilling required,Lock and Key Anti-Theft Security Holder,Multiple footing mounts,Two flexible joints on arm rotate, tilt, and lock in place for easy angle adjustment,Perfect for passenger or commercial vehicles, like taxis, delivery trucks, emergency vehicles, and more,75x75mm and 100x100mm VESA mount to laptop joint,Rugged sturdy construction,VESA Compatible with 75×75 and 100x100MM connections,Compatible with laptops that has a length dimension of 17" or less