It is a kind of blank made by combining traditional folk crafts with modern processing technologies such as sawing, cutting, splitting and punching. Recycled products. Natural horn materials include buffalo horn, yellow horn, white horn, yak horn and so on. The difference between a genuine horn seal and a genuine horn seal is that the genuine horn seal is easy to be inked. It can be printed several times last time, and the impression is clear. Real horns smell like horns when they are heated (burnt). They smell like burnt feathers or hair, feel like hands, are heavier than plastic, and generally have blood and lines. Fake horn prints do not have the above characteristics.