Tension Gauge This 3D printer belt tension meter provides accurate measurements, making it an essential tool for your 3D printing needs.Good Accessories: Tension Meter Tester is designed to make belt adjustments easier and more uniform, ensuring optimal performance of your 3D printer.RANGE:The measurement range of this tool is from 0-12mm/0-0.47inch, allowing you to measure a variety of belt sizes.EASY TO USE: Simply press the top handle of the thickness gauge, insert the object to be measured, and release the handle to get an accurate thickness reading. MATERIAL AND SIZE: Belt Tensiometer is made from stable ABS material with dimensions of 11.5cmx5.7cm/4.53inchx2.24inch. Specification: Material: ABS Size Chart: 11.5cmx5.7cm/4.53inchx2.24inch Package Includes: 1 3D Printers Tension Gauge Note: Please allow slightly errors 1-2cm differences due to manual measurement.