The S-shaped curbstone is a combination of standing and flat stones of ordinary curbstones, which some customers refer to as a standing and lying integrated curbstone. From the appearance, it looks like an S. The upper part of S is equivalent to the standing stone of the curbstone, which is the function of a regular curbstone. The lower part of S is equivalent to the flat stone of the curbstone, and the curved part is convenient for drainage. The thickness is too thick and there is no comparison, because the thicker the S-shaped roadside stone, the higher the price of the stone. The basic thickness used in general projects on the market is usually 20cm, 25cm, and 30cm. Of course, if you want any other specifications and processing sizes, you can ask the stone manufacturer for instructions, and they can also be processed according to the requirements.