Couch Sofa Release Lever Slip-on Replacement Fix

The release lever for my couch snapped-off, so I designed this fix for it. Since a "stub" of the original lever still remained, I designed this thing to slip on over the remaining stub. Printed in black PLA to match the couch, though I realize this makes it a bit hard to see in the photos.

The first photo shows the printed part attached to the couch. The second shows the "stub" that the printed part fits over. The third is a reference photo of a still-intact release lever. The fourth is just