What is the standard size of reflective stickers?

[SanZoey]

3M vehicle reflective stickers generally come in the size of: 5cmX45.72m, 5cm in width and approximately 45.72 meters in length. Relevant regulations: Domestic regulations only require trucks to have reflective strips to enhance safety during nighttime driving. There are no explicit regulations for private cars, so it's optional. However, if applied, they must be installed according to the requirements; otherwise, penalties may be imposed by traffic police if discovered. Requirements for applying reflective film: The visible light transmittance of the front windshield in the driver's viewing area and the areas used for observing external rearview mirrors while driving should be greater than or equal to 70%. No mirrored reflective sunshade film should be applied to any window glass.