This is the spinner for the Great Planes Ultimate Biplane.
Features: Constructed of aluminum, polished finish
Includes: One Spinner with backplate and 5mm x 54.5mm mounting bolt with 7mm bolt for the Great Planes Ultimate Biplane
Requires: Installing on engine's crankshaft, 3mm hex wrench needed to tighten bolt
Diameter: 4 (101mm)
Length: 4.25 (118mm)