This is a DuBro 4 Pin 1-3/4" Spinner. These are made to be simple, easy and safe to install. Featuring a unique insert lock design for attaching the back plate and spinner - giving a solid and secure hold. Each spinner comes complete with five shaft adapters (5mm, 6mm, 1/4", 7mm, 5/16") so you don't have to drill out the back plate. Package includes one spinner and five shaft adapters.

Features:

• Includes 5 shaft adapters (5mm, 6mm, 1/4", 7mm, 5/16")
• Simple, easy, and safe to install
• Designed with safety in mind
• 100% virgin nylon
• Insert lock design for attaching the back plate and spinner

Specifications:

Color: Red

Outer Diameter: 1.75 inch (44.5mm)
Weight: 19g

Material: Plastic

Spinner Type: 2 Blade