Basic Autocross Number Set
[AXBSC]

I have the vinyl number set and I have to say these numbers have held up very well and last me a whole season of auto-x (14 or so events) of being taken on and off. The trick to maximum performance is keeping them as clean as possible and making sure that the surface you are applying them to is clean and dry. Spray the application area with detail spray and then buff dry, make sure your hands are good and clean too. After applying on the car gently rub the edges to make sure they don't lift and attract dirt. Be gentile when removing the numbers as they can tear or buckle in the corners if you are too hasty. The numbers will keep their stickiness all year if you look after them.