Features: brand new and high quality There are 3 types, 45/52/65mm ,1.77/2.04/2.55 in, choosing the one just for you. Unique slot design, easy to lock, high - precision, non-slip teeth. Exquisite workmanship, attractive appearance not rough. Aluminum alloy matetial, surface oxidation, very durable. Elaborate design, not easy slide wire, and easy to remove. All-sandblasting process, the appearance is beautiful, need not the second spray plastic treatment. Cast aluminum clamper, with higher precision, not easy to deform. Fitting for 40mm-80mm diameter high-speed spindle motor. Specifications: Material: Aluminum Alloy Size: 45/52/65mm ,1.77/2.04/2.55 in. Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Mount Bracket Clamp