This 7" X 9" unmounted rubber stamp is a great tool for potters. It works well on slabs as well as thrown work.The details are clear on all work rolled onto the mat. There is no sticking either. It is a fun and easy way to add texture to your work. It can also be used to print slip or glaze onto your clay project. In fact it can be used with paint or ink to print on just about anything.....paper..... wood... fabric.....explore and enjoy!!!!