Cutting the toughest materials is a breeze with Dr. Slick Tungsten Carbide Scissors. They are super-sharp and extra-hard, five times harder than steel. The 3-1/2 arrow-tip scissors are great for precise cutting and trimming. The 4 scissors are ideal for trimming hair and synthetic materials. Available: 3-1/2 Arrow Straight 4 Straight 4-1/2 Straight Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Scissors.