This AxisFlying ECO F405 4 - 6S 30x30 Stack/Combo is for drone hobbyists looking to build high - performance FPV drones. It includes an F405 FC and a 32Bit 60A 4in1 ESC. The F405 FC has a size of 36x36x6mm, weighs 7g, and supports 4 - 6S input voltage. The 32Bit 60A 4in1 ESC has a size of 44.8x43.6mm, weighs 13.5g, also supports 4 - 6S input voltage. It's lightweight, easy to use, and great for creating your custom FPV drone setup.