Unique design：Handlebar clamp mounting base bar clamps with four 1/4" holes, can be on other 1/4" threaded holes installed multiple 1-inch ball heads or 17mm ball heads with 1/4" threads , making it convenient to install mobile phone holders and sports camera holders at the same time, spring-loaded construction for quick clamping or unclamping of device, butterfly knob can easily adjust the tightness of the mobile phone holder, no need for specialized tools, anyone can easily install. | Compatible with RAM mount：This 1 inch ball handlebar clamp mount compatible with RAM Mounts & FANAUE any B size double socket arm 1 inch ball, work for other devices with 1 inch swivel ball mounting pattern, perfectly suited for mounting on yoke of an aircraft, handlebars of strollers/mountain bikes/dirt bike/trek bikes/road bike/golf carts/electric scooters/ATV or even on kayak rails and roll bars, is ideal mounting base for smartphone, tablets, action cameras, rod holders and much more. | Easy to install：Single socket arm with handlebar base mount strong rod clamp inner non-slip rubber pad design makes it safer and more reliable when installed on the handlebar and will not damage the car paint, simply clamp the base to handlebars to secure phone holder, rod clamp Minimum clamping range of 0.5"（13mm）, maximum clamping range of 2.0"（52mm）, can clamp equipment within the range, such as motorcycle handlebars, bicycle handlebars, and other sticks, squares etc. | Long service life：Single socket arm with handlebar base mount strong rod clamp body is made of 6061-T6 aluminum alloy, which can maintain durability and reliability in most demanding environments, surface is treated with grade III hard anodizing, solid stainless steel ball is covered with high-quality non-slip rubber, which plays a good role in protecting ball, it’s a good choice for long-term use of motorcycle phone holder, bike phone mount, handlebar phone mounts and so on. | Lifetime Warranty：The single socket arm with handlebar base mount strong rod clamp with a lifetime warranty, if you have any questions about the product, please contact us in time, we will provide you with the best solution within 24H. Whether you're riding beginner or riding enthusiast, this handlebar base mount strong rod clamp can fulfill your need to free your hands. Delicate and simple design makes it can be Christmas gift for your friends, bring them surprise and fun on riding!