Features: Achieve precise printing with our 3D Printers Belt Tension Measurement Tool. Accurately adjust your Printers belts for better performances plastic measurement tool. Perfect for 3D printing enthusiasts, our measurement tool is a valuable accessory for achieving print. Whether you're a hobbyist or professional, our measurement tool allows you to fine tune your Printers belts for smooth and accurate printing. TYPE: 3D printer belt tensiometer Color: Black Material: plastic + metal The normal 2GT-6MM belt tension calibration reference value is about 9mm, Gates is about 8.9mm, and the high temperature non-slip belt is generally about 8.8mm The normal 2GT-9MM belt tension calibration reference value is about 8mm, Gates is about 7.9mm, and the high temperature non-slip belt is generally about 7.8mm Conditions and methods of use of 3D printer belt tension meter: 1. your machine belt must be leaked outside the machine, there is enough measurement space 2. For the first time use, please pull out the measuring gauge handle completely and then the reset button, raise the probe and then snap the belt into it, place the belt on the two metal pillars, and then release the measuring handle to get the tension value of the belt Black type: upgraded with more accurate metal probe and improved measuring head, it can easily adapt to more demanding measuring conditions, and 90% of large and small 3D printers can be easily measured. Package Contents: 3 x 3D Printer Belt Tensiometer Only 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 +/- 1-3cm.