Fits BETAFPV X-Knight 4-inch ToothPick and many others!

HQ Durable Prop T4X2.5Grey （2CW+2CCW)-Poly Carbonate.

SPECIFICATIONS:

• Propeller Diameter: 4 inch       
• Pitch : 2.5                 
• Blades : 2
• Material : Poly Carbonate        
• Weight :1.45g
• Hub Diameter : 9.8mm           
• Hub Thickness:5mm        
• Shaft :1.9/1.4/1.9mm 
• Adaptor Rings : NO