We have added a Class IV Medical Laser to our veterinary tool box. We considered purchasing a laser for many years and it took Dr. Jack hurting her back to see the benefit of having one. Dr. Jack was in moderate pain when she allowed the sales rep to demonstrate the healing properties of the K- Laser on her back. Before the treatment was over she said she had some relief. Two hours after one treatment the pain that had been nagging on her for weeks was gone and stayed gone for a month. That was the proof that she needed to purchase the amazing tool.