These 31mm props are just customed for 65mm brushless drones that has 1.0mm motor shaft. The compatiable motors include Sunnysky 0703 motors, Racerstar 0703 motors, and Boldclash 0703 motors.

Specification

• Product material: Clear Plastic
• Inner diameter:  1.0mm Shaft
• Height: 7.2mm
• Weight (2CW+2CCW): 1.20(g) = 0.04(oz)

Package

• 2 * CW 4-blade 31mm Whoop Props (1.0mm shaft)
• 2 * CCW 4-blade 31mm Whoop Props (1.0mm shaft)