Specification:Brand: ROCKMaterial: Aluminum alloy+ ABS+ SiliconeColor: Grey, Silver, GoldCompatible with: 57mm< wideth< 83mm, 5mm< thickness< 11mmFeatures:One-handed operation-- Simply pop your phone in and out of the mount by one hand.Made of aluminum alloy material processed by anodizing sandblasting technology, it presents a high-end look.Multiple viewing angle-- A ball joint allows you freely adjust to get the most comfortable viewing angle.Suction cup-- Strong suction cup makes it securely keep on flat surface.210 degree rotatable arm offers a desired angle for your needs.Unique gravity linkage design enables you simply lock your phone in place, easy of use.Package included:1 x ROCK Metal Gravity Auto Lock Car Holder