Anet A6 Y axis stabilising spacer

This is a spacer for the Y axis, between the threaded rods and the frame (the U shaped gap in the middle section, not the hole in the back). It stabilizes the Y axis, preventing the slight slack parallel to the X axis.
To install it, you will need to remove the entire Y axis assembly. Remove the nuts and washers to place the spacer in the correct position on the threaded rod and then replace them. Holding just the threaded rod assembly, push the spacer into the gap in the frame, this may t