i desing this model to be extenable. The dimension is 1,80 meter length, and 4 cm diameter.

I have split in piece of 25 cm long.

for this you will need-8 circular magnet 5x5 mm.-a steel chain with a diamter of 20 mm and a legth of 1.5 meter.-two long and stregth elatic-8mm of your 1.75 mm pla (little holes )

this modele is accurate ( desing with a picture of the anime).