Improved visibility for precise readings in all lighting conditions: enlarged, contrast markings provide effortless readability of displayed numbers and reduce reading errors. Stable and sturdy construction: built with dependable, strength components to maintain dimensional stability and precision, standing up to frequent use without degradation. Manual parameter flexibility with broad compatibility: supports a wide range of car tire balancer models and enables precise manual parameter input, delivering accurate and adaptable performance across various applications. Ergonomic and portable design: compact, lightweight, and easy to handle, making the tool suitable for use wherever needed. Use scenario 1: In a professional tire service , the tire caliber rule is used to balance tires across multiple makes and models. The broad compatibility and manual input ensure accurate parameter settings and efficient workflow. Use scenario 2: Onsite roadside service or mobile tire work where quick, reliable measurements are required. The compact size and clear markings help technicians read and set parameters fast, with minimal tool handling. Use scenario 3: In a calibration or maintenance workflow within a workshop that demands repeatable measurements and durable performance. The strength build maintains accuracy over time, reducing the need for frequent replacement.