Quad Lock® Universal Adaptor The Quad Lock® Universal Adaptor can directly adhere to smartphones, cases, iPads / tablets, and most flat metal or plastic surfaces and is compatible with all Quad Lock® Mounts. SECURE MOUNTING The Patented Dual-Stage Lock makes it quick & easy to attach/detach your device, whilst giving you the peace of mind to know your device is securely locked. SLIM PROFILE At just 4.5mm thick, the Quad Lock® Universal Adaptor fits seamlessly onto the back of smartphones and cases.