Topo shoe for GPS survey pole Leica GLS30 / GLS31 carbon fibre pole.
Topo shoe or topo boot to enable more accurate measurements of soil level.
Made from Creality scan of pole tip which was "fatten" ed in Blender by 0.25mm to give some slack.
Tight friction fit - the controller bracket clamp can be used as a slide hammer to remove it, but only if it's fitted beforehand.