Description: Durable Material:Full 3K carbon fiber, more lightweight, well made and durable. Feature: frame is easy swaps arms design,with ,5mm thickness arm guard and antenna mount, compact design greatly reduce the total weight, small wind resistance coefficient,more durability. Apperance:The H shaped structure of the arm quadcopter frame does not affect the flying experience at all. On the contrary, compared with the X shaped structure, the arms are shorter and lighter. At the same time, the strength of the arms is higher. ConvienceThe aircraft cabin of quad frame also reserves two control installation positions with hole spacing of 30.5mmx30.5mm and 20mmx20mm. It is suitable for the installation of various control equipment. StructureThe drone frame has been chamfered and polished, with fine workmanship and reasonable structure. Specification: Material:Carbon Fiber Weight: 121g Recommended configuration: controller: F3/F4/F7/H743 Motor: 2205/2206/2207/2305/2306 ESC: 30A 60A Size Chart: Propeller: 7 Inch Motor to Motor:29.5cm/11.61inch Size: 19.3cmx22.3cm/7.60inchx8.78inch Arms Plate: 0.5cm/0.20inch Top Plate: 0.25cm/0.10inch Bottom Plate: 0.25cm/0.10inch Side Plate: 0.25cm/0.10inch Camera Mount Size: 1.9cmx1.9cm/0.75inchx0.75inch Package Includes: 1Arm Quadcopter Frame Note: Please allow slightly errors due to manual measurement and different monitors.