Great Planes Spinner 2-1/4" Nylon Aluminum White, Black, Red or Yellow. This is a Two-piece Two-Blade Nylon Spinner with an Aluminum Backplate.

Features:

• No adapter nut required
• Engine shaft hole is stepped to prefectly center the opening if englarging is needed.
• Sturdy Aluminum backplate holds the spinner in round-which means it turns truer, with less vibration.

Includes:

• One spinner cone
• One aluminum backplate
• Two 3/32 x 5/32 S/T screws

Specs:

• Spinner Diameter: 2-1/4"
• Spinner Backplate Thickness: 1/8"
• Crankshaft Hole: Stepped from 5/16" to 1/4"