This is the DuBro Yellow 2" Nylon Spinner for 2 Blade Props
FEATURES: Red nylon construction
Interchangeable nylon adapters for use on various size prop shafts
INCLUDES: One 2" spinner
One spinner backplate
Two 4-40 nylon lock nuts
Two 4-40 x 1/2" cap head screws
Five nylon adapers for the following crankshaft sizes:
5/16", 9/32", 1/4", 7/32", 3/16"
Instructions on header card
REQUIRES: A 3/32" hex wrench for cap head screws
SPECS: Length: 2-1/8"
Diameter: 2" OD of spinner at rear
3/8" crankshaft hole (adjustable with included adapters)
COMMENTS: Caution must be used when mounting the spinner. Failure to follow
the included instructions carefully may result in injury.