This semchin machine has high safety that we did the small work on this machine with 18 years of experience. Both the cow does not get hurt and the technician performs the hoof correction with high safety and peace of mind. It is completely safe. The bottom has a three-mil sheet on the top and bottom of the protection so that the cow does not step on the vet. Small external almond chain that does not crack at all. Their form is large. 3 belts. It has bearings, it has a solar system, and a car hook, and everything is subject to return