Wood rolling pins are made in USA, and come in 3 sizes. These tools can be used on a slab of clay flat on the table or directly on work on the wheel if it is firm enough to support making the marks. Not every design is made in all 3 sizes but some are made at all three lengths of roller. When you purchase a rolling pin you also purchase right to make & sell these designs in your own clay artwork. All clay tools are copyright (C) 2009-2025 SOCWELL LLC. A release agent like corn starch works well to prevent the clay from sticking to the roller if the clay is sticky wet. Otherwise letting the clay dry just a little helps release without using a release agent.