Features: Accurately measure bike disc rotors with precise (2.0, 1.8, 1.55, 1.5), while assessing wear levels and thickness for replacement decisions. Crafted from corrosions resistant alloy steel, this compact bike disc measuring tool combines durability construction with pocket sized portability for fast brake systems diagnostics. Ideal for cycling mechanics, DIYer enthusiasts, and mountain bikers requiring reliabled disc brake measurement tool for regular maintenance checks. Use this essential bike maintenance tool in workshops, trailside repairs, or home garages to verify rotor specifications before critical rides or component upgrades. Streamlines your brake assessment process with clearly marked measurement indicators that eliminate guesswork, ensuring optimal braking performances across various cycling disciplines. Specifications: Component: Steel. Size: 85x20mm/3.34x0.78inch Weight: 30g. Color: Black. Package Includes: 1pcs Disc Brake Rotor Measuring Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.