This is the Du-Bro 298 Plastic Spinner 3in Red

Simple, easy and safe to install. The spinners are available in 7 sizes. Each spinner comes complete with 5 shaft adapters (5mm, 6mm, 1/4", 7mm, 5/16"). You don t have to drill out our back plates!
Features a unique nylon insert lock design for attaching the back plate and spinner - giving a solid and secure hold. Designed with safety in mind. 1/pkg.

Weights:

1-1/2" (38.1 mm) - 12 grams
1-3/4" (44.5 mm) - 19 grams
2" (50.8 mm) - 26 grams
2-1/4" (57.15 mm) - 34 grams
2-1/2" (63.5 mm) - 49 grams
2-3/4" (69.85 mm) - 57 grams
3" (76.2 mm) - 69 grams

Made in USA