Features: Fine Measurement Extent: This sliding diameter measuring tool precisely procedures diameters as small as 2mm and diameters up to 100mm, ideal for both small and large round objects, especially facilitating measurements of tiny dimensions. 1: Planumberebog: Highlighting a 1: plan, users can directly arrange the tool with the object exist measured, providing live and accurate readings, minimizing errors and enhancing the user knowledge. Excellent ABS Substancemail: Constructed from permanent and thin ABS polystyrene, this tool is immune to effect and wear, ensuring extended use and stability in various conditions. Easy Actparticlemail: The inherent sliding adjustment plan allows users to effortlessly set the tool to the wished size, making it user friendly even novices and improving work efficiency. Wide Applicatparticlemail: This sliding diameter measuring tool is widely used household , craft making, and mechanical processing, facilitating quick and accurate measurements of various round objects. Specifications: Substancemail: Direct current ABS polystyrene Sizemail: approximately 19.5x8.4x0.9cm Measuring extent: 4mm Direct current 100mm (diameter) Application circumstancesecond: home, craft production, industrial plan Package Includes: Radius measurement tool × 1 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you will not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color about the item.