The super clamp securely grip objects with a diameter of 0.6"-2.4"/14-60mm, perfect for flat surfaces like desks and tripods, cylindrical objects such as selfie sticks, light stands, shoulder rigs, and bicycle handlebars and more, and also compatible with DJI Ronin-M Ronin MX & Freefly Movi 25mm and 30mm gimbal stabilizer rods. The V grooves and pivot tips all padded with silicone rubber provides enhanced stability and prevent scratches. The two 360° rotatable ball heads on the 3"/7.62cm magic arm can be adjusted to any angle for optimal shooting flexibility. The screw knob enables quick and easy fastening of the ball heads. Securely attach your smartphone with a width of 2.2"-3.3"/55-85 mm or mount your action camera with included adapters, compatible with iPhone 15 Pro Max 14 13 12 11 Pro Max Plus Mini X Xs XR Samsung Galaxy S22 S23 Ultra Huawei P60 GoPro Hero 12 11 10 9 8 7 Black DJI Action 3 etc. Also using 1/4" screw to connect monitors, LED lights, microphones and more. The maximum payload is 6.6lb (3.0kg). With 1/4" threads, 3/8" threads, ARRI locating points and a built in cold shoe mount , the super clamp and magic arm can connect numerous accessories like a monitor, shoulder rig, and camera cage. A detachable cold shoe mount adapter can be easily attached via a 1/4" screw for quick mounting of LED fill lights, microphones, and more (not suitable for on camera speedlite flashes). Aluminum alloy and stainless steel hybrid material with precise CNC machining makes this clamp and arm durable. Nonslip rubber pads on the clamp and the device mounting plate can increase stability and protect your equipment against scratches.