Shen Drones Big Baby 3" Frame - Carbon and Hardware OnlyBig Baby is a 150mm X8 for 3" props. It has a 4mm base plate and a 2mm top plate. The motors are stacked using low profile 2mm catdog mounts. Stack height is 25mm, but you can run taller standoffs if you need the room. The Lumenier Lux7 is recommended for X8's. The frame is drilled for 2 30x30 and 20x20 stacks. More standoff options can be found here: M3 Standoffs Check out all our Frames, and the rest of our Shendrones Products! The fpv cam mount and