Barracuda Studios/BarracudaCast resin detail set BR72137

from the manufacturer:

The first ever accurate Firefly/Barra mainwheels, created from careful measurements of surviving wheels and study of period photos. Super detailed resin 5-slot wheels fitted to wartime Fairey Firefly Mk Is and wartime Fairey Barracudas. Greatly improves the Frog and Special Hobby kits of both subjects.