Product name:HSKRC Martian IV 220mm 5 Inch / 290mm 7 Inch / 330mm 8 Inch 4mm Arm Frame Kit w/ PDB for RC Drone FPV Racing 5 Inch (220mm) KSX3721 -- Martian IV 220mm 5 Inch / 290mm 7 Inch / 330mm 8 Inch 4mm Arm Frame Kit w/ PDB for RC Drone FPV Racing . --Made of quality material, it's high strength, non-deformation, anti-rust and wear resistant. --Pretty delicate surface is glossy, colorful and long lasting. --Good replacement part for RC lovers to replace you old or broken ones. . Description: Product Category:Frame Kit Brand Name: HSKRC Model: Martian IV Item Name: 220mm 5 Inch / 290mm 7 Inch / 330mm 8 Inch Racing Frame Kit Optional Size Version: 5 / 7/ 8 Inch Wheelbase: 5 Inch (220) / 7 Inch ( 290) / 8 Inch (330) mm Arm Plate Thickness: 4 Other Plate Thickness: 2 FC Fixing Height: 21 Battery Fixing Width: 35 The Height of Frame Front Part: 30 The Height of Frame Tail Part: 30 Camera Mounting Width: 28 Weight: about 118g Recommend Parts: Flight Controller: 30.5x30.5mm F3/ F4 Flight Controller Brushless Motor: 22xx Series Motor etc. ( 16x19 ; M3 ) Brushless ESC: 20-40A ESC Propeller: 5 Inch / 7 Inch/ 8 Inch Propeller FPV Camera: RunCam Eagle 2 Pro ( 28mm mounting width) The following Parts are Compatible: ( NOT Included) FC ESC : DYS 30.5x30.5mm Omnibus F4 Pro Flight Controller + F30A 4 in 1 BL_S ESC Holybro Kakute F7 V1.5 Flight Controller Tekko32 F3 40A BL_32 3-6S ESC Stack Motor: Emax RS2205 2300 2205 2300KV Racing Edition Brushless Motor Racerstar & T-Motor F40 II 2305 1600KV 4-6S Brushless Motor Racerstar Racing Edition 2212 BR2212 980KV 2-4S Brushless Motor Propeller: LDARC 5045 5x4.5 5 Inch 3-blade Rainbow Colorful Propellers CW CCW Gemfan Flash 7040 7 Inch Long Range 3-Blade Propeller Support POPO Gemfan 8045 8x4.5 8 Inch 2-Blade Carbon Nylon Propeller w/ 6mm Mounting Hole FPV Camera: RunCam Eagle 2 Pro Global WDR OSD Audio 800TVL CMOS FPV Camera RunCam Night Eagle 2 PRO 1/1.8" CMOS 2.5mm 800TVL 4:3 FPV Camera Packing list: 1x HSKRC Martian IV 5 Inch/ 7 Inch/ 8 Inch Frame 1x PDB Board