Craftools are an investment that will last for years to come! Stops are mainly used at the end of a swivel knife cut, on a floral design, to enhance its appearance. They are used at the base of flower petals, leaves and many other areas to give more definition to the pattern and to create special effects. "Tech Tips" #66056-00 by Al Stohlman, shows how they are used and gives many special effects ideas. Approx. stamp dimensions: 3/32x1/4.