21.5mm CARBON tubes - arms

 21.5mm diameter (20mm inside) arms.

Material: Carbon Fiber (3k twill)

325mm long - 12" propellers for our Sixcopter.

370mm long - 14" propellers for our Sixcopter.

400mm long -  used in our Octocopter

Weight: 325mm long - 28g, 370mm long 32.5g

Price for 1 piece.