1. Double manganese steel clamp two groups of steel spring structure, stable locking each equipment, 20mm plus thick rod arm Integrated strong support rod arm screen does not shake, stable and does not fall, 360 rotation horizontal and vertical adjustment, shell adjustment universal wheel, clamping direction can be adjusted at will 2. Upgraded material stable and durable, upgraded TPE+ high purity flexible integrated aviation alloy, stable and durable, easy to bend without breaking 3. Clamp arm reinforcement iPad does not hit the face, high-strength stretching spring, firmly clamp the phone/tablet does not fall off 4. The cylinder can be clamped not loose, thickened and widened base, screw locking, stable and not loose 5.1.38m scientific length can be adjusted at will. 1.38m scientific length can be adjusted at will to protect the cervical vertebra 6. Upgrade the base to prevent shaking and strengthen the base for stronger support. Strong anti-jitter