Multi functional measurement tools: designed for ceramic production, can measure parameters of different sizes, such as diameter, height, thickness, length, etc. to the accuracy of the production processEasy adjustment: The height and range of the ruler can be easily adjusted to the place you need to meet the needs of the ceramic production process and improve efficiency.Perfect tools are used to copy ceramics with the same height and width.Portable practical: design makes this combination ruler easy to carry and store, so that users can use them in occasions, such as workshops, studios or out.The ideal tools of ceramic workers, decorationists and DIY loversEasy to read: Our measurement ruler standard has a clear scale. Even in the working environment with insufficient light or dust, it can easily read the value, reduce operating errors and promote ceramic work. materials: Ceramic ruler is made of high quality materials. The texture is soft, the edges are smooth, the toughness and durability are not easy to break, and it is suitable for long term use of the ceramic processing environment.Use this throwing instrument to make your pottery the same size and shape. Great for pottery beginners and families.Colour:As ShownMaterial:MetalPackage Contents:1set x pottery throwing gaugeOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.