A pinky rest for a FFJ Gaming mouse

The mouse is https://www.amazon.com/dp/B0DBZP8C99?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

I noticed my mouse had no spot for my pinky to rest so i designed this, The rest mounts to the mouse by sliding in to the spot where the Wireless USB dongle goes
It should fit most mice that have a wireless USB dongle spot.

If it works on other mice please comment and say so, also open to any feedback, ideas and improvements

V3 has extra support
V2 has no extra support so its very flexible