1、The principle of lasso: add a curved handle at the end of the rope to fix the end of the rope. When using the handle, the handle can be used to control the length of the rope, and it is difficult to break free of the timing. 2、Multi-strand steel wire: The set of pigs is made of multi-strand steel wire and the strength is greatly enhanced. The multi-strand steel wire is tough and continuous, thus extending the service life of the product. 3、Wire protective cover: The surface of the product wire is coated with plastic, and the surface of the plastic cover is smooth and round. When the pig is struggling, it can protect the skin of the pig from the steel wire, thus reducing the loss of the p 4、Reinforced nut: The retainer rope consists of two ends, one end is fixed and one end is telescopic. 5、The fixed end of the product is fixed with a polygonal nut to enhance the stability of the fixed end. Reduce the chances of the pig breaking off the rope to a low point.