This little thing will help to save your Spektrum VA1100 antenna from bending on hard landings.
There are 2 versions, choose the one depending on your antenna lobes alignment. If the lobe prevents installing the centered saver, choose left saver option. If your lobes are aligned to the sides and the center is free, use the centered version. My standalone Spektrum VA1100 uses left aligned saver, the one that came with Blade Nano QX FPV uses centered saver.
It should sit tight on the pins inside, if it doesn't fit, file the bottom corners a bit.
Print with 100% infill, so that it's completely solid for strength. 0.2mm layer is recommended to better match the width.