This loop needle is a suitable tool for turning fabric strips right side out.
To turn the fabric strip right side out, first thread it over the plastic tube and then use the bamboo pole to push the fabric through the tube.
Plastic tubes are available in three sizes.
S for tunnel widths of 9.5 - 16 mm,
M for tunnel widths of 19 - 25 mm
L for tunnel widths of 25 mm and above.