I got trigger finger when using regular scissors to cut thick chicken treats for my dogs. They are designed for tin/metal but they are stronger than regular shears. The squeezing motion I had to use to cut caused a painful tendinitis/trigger finger. These metal scissors make cutting easy and smooth and solved my problem. I like that the edges aren't curved like some other scissors. IRWIN has always been my family's favorite instrument brand. They are of higher quality and trusted brand.