Quad Lock Knuckle Adaptor Motorcycle Knuckle Adaptor Stainless Steel Hardware Glass Filled Nylon Construction 34.8mm tall, 25mm wide Compatible with all Quad Lock 360 products Suitable for Quad Lock Handlebar, Fork Stem and Mirror Mounts, the Quad Lock Motorcycle Knuckle Adaptor can be integrated between the mount and the index head to provide extra height and another level of adjustability when setting your smartphone viewing angle. About Quad Lock The unrivalled design of Quad Lock aims to make life easier by effortlessly integrating the power of mobile devices into your everyday life whether you are taking the bike on a ride, in the car or enjoying an active lifestyle. The company was created in Australia by Chris Peters and Rob Ward and introduced to the market through the internet and crowd funding. Their success can be attributed to their point of difference; the Quad Lock cases feature a patented dual-stage lock mechanism that will securely attach your chosen device to the mount. It is also extremely quick to attach/detach the Quad Lock with one hand while giving you peace of mind to know that your device is securely locked. There is a phone case for most phones on the market to give you confidence on your next ride, and if we don’t have a case for your phone we carry a universal adaptor that can be placed on the back of your current phone case.