APC 5.25 x 4.75 Speed 400 Electric Propeller APCLP053475E

 This is an APC APCLP053475E 5.25 x 4.75 Speed 400 Electric Propeller.  This is to be used on electric planes only. 

Features:

• Gray composite propeller that assembles onto a propeller hub
• Comes with 2 adapter rings that adapt to different motor shafts 

Requires:

ALL props require balancing, this is VERY important

Specs:

• Length: 5.25
• Pitch: 4.75
• Hub inner diameter:  0.25