These are the perfect solution for those who don't want to apply backgrounds and would prefer to just add a number instead! These are thick 19 mil numbers that are die cut for perfect cut numbers. Easy application with thick, durable numbers with sticky adhesive so they don't come off when you clean your bike with a pressure washer! Remember when order keep in mind how many numbers you use and measure you plate height. If using a 3 digit number on a bigger bike you would want a 5" size. The pro jumbo numbers are great for 125cc & up if you want a single digit but extra big to take up the whole plate they are then normal to fill the plate.