QuikArt Hallmark Stamps & Stampers are high-definition stamps created specifically for great impressions in all types of clay!  A specialized process is used during manufacturing so that each stamp has the ideal density, durometer and depth to make stunning designs, from subtle to bold, in clay with beautiful relief!  Each stamp is produced using a process that creates three dimensional depths of texture resulting in a high definition impression in all types of clay.  Gently clean with warm water and dish soap and store away from light.