Features: Made of high-quality stainless steel material. Standard M2.5 rollers with non-return nuts for indicators. Provides high performance and durability. Smooth operation and adjustable to the correct orientation to match dial gauge readings. Enables accurate detection of wheel problems through efficient continuous testing. Prevents the probe from scratching the rim and ensures consistent dial indicator performance. Compatible with most electronic, digital indicators, and dial gauges. Suitable for measurements on slow-moving materials. Product Parameters: Roller Diameter: 10mm Thread Size: M2.5 Material: Stainless Steel Color: Silver Package Contents: 1 x Roller Probe Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.