MPI Folding Spinner 40mm Dia, 5/32" (4mm), 5mm Shaft
by MPI

Regular Cone with bolts through propellers (middle of the picture). Use with MPI propellers.

• Made of high quality aluminum bar stock.
• Light weight design.
• Multiple collets for different motor shafts included  5/32" (4mm), 5mm
• 40mm Diameter
• Weight (oz/g) .60 / 17

Does not work with APC style folding props. Please use PA40