Sloths made of artificial and natural stone are popular and in demand. Often, a granite has an unusual appearance to create window sills. Granite has become a synonym for the strength, durability and reliability that is characteristic of it. However, everyone who was interested in natural stone windocons noted their high cost. This is a consequence of the high cost of the cost of the production process and the process of processing the material. Sometimes therefore preference is given to artificial stone products.