Tired of not being able to align the flex sheet sideways? Try this corner guide and get coistently alignment to the not just on the back but also sideways.. (Note: Using full length needs an ordinary M3 nut on the left side so I doesn't hit the motor) How to: Align to the back then slide all the way to the right. Align to the right then slide all the way to the back. Shove the flex bed corner to the guides corner (quickest but not the most accurate).