Made of high-quality Carbon Fiber, Small and exquisite,the 9 inch drone frame can fly outdoors or fly indoors in a large space Through a process of continuous refinement and always striving to improve has created a breed of freestyle frame. For does not compromise in stiffness or durability, so you never have to choose between confidence and performance.Perfect balance between performance and durability design elements to the make your build and maintenance more simple than ever before. Toughness of the frame itself is increased while also offering much better protection for your investment in-flight electronics Easy to assemble,no need for complicated stepssuitable for both beginners and experienced players Rack type: wide X type Wheelbase: 390MM Propeller: 9 inches Base plate thickness: 2.5MM Medium plate thickness: 2.0MM Top plate thickness: 2MM Arm thickness: 5MM Camera installation distance: 19-20MM Image transmission installation hole distance: compatible with 30.5MM/25.5MM/20MM Flight control installation hole distance: compatible with 30.5MM/20MM Recommended configuration Motor mounting hole distance: 16x16mm/19x19mm Flight control: /KISS/F3/F4/F7 Motor: 2205/06/07/2305/2306/2307 ESC: 20-50A Battery: 4-6S 3500-5200MAH Material: carbon fiber colour: grey Package Contents: 1 Set of -9 Inch Rack Components Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.