In this frame 4inch props matching 4mm cf plate, it designed among piko blx flight controller(also compatible with others fc with 20x20 mounting holes spacing) and standard CCD cams. This is true X frame with 160mm diagonal, the main idea of Zerro frames is to get the most compact frame, with usability of traditional H frames where you need only unscrew 4 bolts to get to every component inside the frame. They also provided "slammed" design with 25 mm standoffs, which gives more strength to the top of the frame and also saves weight.

True X geometry, 160mm diagonal, slammed design with 25mm standoffs.

Motors: 220X (16-19mm diameter, m3 screws)

Main plate: 4mm

Flight controller: 20X20(piko blx and others)

Camera: standard 26x26 ccd(28mm distant between camera side plates)

Carbon fiber weight: ~40g

Kit includes only CF parts

For assembly you need 4 25mm standoffs(not bigger then 6mm in diameter)

Additional 3mm main plate for small motors(total cf weight ~32g) https://armattanproductions.com/pages/product_details/5746