T-MOTOR QAD PA059 Prop Adapter 26-34 inch Propeller – 2PCS

T-MOTOR QAD Prop Adapter 26-34 inch Propeller – 2PCS

QAD – Quick Attach Detach

for U8, U10, U12 with 26 – 34 inch props

Includes a pair of connectors one A and one B, for use on 2 motors.

for a quad copter you need to buy 2 pairs, Octocopter 4 pairs.