The total length of the support arm is 80 cm and the arm is curved into an "S" shape or round to improve stability and reduce shock.which is stronger than the usual phone holder on the market and can protect your smartphone from falling or moving.The gooseneck phone holder adopts upgraded 1.2cm thick and durable aluminum alloy arm (other 1cm).This can effectively help you correct your posture, protect your vision and neck.The phone holder uses upgraded high quality leather and thickened arms to improve durability and adapt to longer distances.Gooseneck cell phone holder, compatible with most cell phones with screen sizes from 4 - 6.5 inches, such as iPhone 13/13mini/13Pro/12 / 12Pro/11 / iPhone XS Max / XS / XR / X / 8 Plus / 8 /7 Plus / 7/6 Plus / 6, Galaxy S20 / S10 / S10 Plus / S9 Plus / S8 / S8. Plus / S7. / Note 8, HTC, Sony, Huawei Mate 40/30/20/10, P40/P30/P10/P9/P8/P7, Xiaomi, Oneplus etc.360-degree rotating chuck and flexible gooseneck arm can be freely adjusted to the desired viewing angle, leaving your hands completely free and you can lie comfortably on the bed or sofa.High quality anti-corrosion materials, durable and soft rubber pads prevent scratching the desktop; Sturdy structure protects your phone from falling.If you use a large phone case or external battery, you need to remove the phone case or battery, otherwise the thickened phone may not be compatible with the spring clamp.