Here’s another nifty little “add on” or “fix-it” for your 1/144th Spitfire. The envelope contains 18 main wheels for Spitfires. I had to look closely, but there are 3 different types of tires in the envelope. There are 6 with no tread, 6 with a tread that runs around the tire, and 6 with a diamond tread. When I said I looked closely, I had to use the headband magnifier to see the tread. But they are there.
As far as using these wheels, they’re slightly better in quality than the wheels in the newer Spitfire kits such as Eduard or Mark 1 so you may want to replace the kit items. But if you’re looking at one of the “older” kits (Crown/Revell/Academy), the Brengun wheels are far superior. And then there’s another need for wheels. The wheels are sometimes knocked off the landing gear, or they just get lost. These are the wheels you need.