Hello,
here is the Support Tube holder for Hailong Akku
https://www.aliexpress.com/item/1005001315092775.html?spm=a2g0
Works with all bike down tube of constant 50mm
mounted with cable ties
printed with Caribou 220 Mk3S ( modded Prusa i3 Mk3s ) material PETG Extrudr White
The author hasn't provided the model origin yet.