Measuring Range Mastery: This set covers a broad range of 5/16 inch - 6 inch (8mm-150mm), ideal for various industrial and automotive applications. Each gauge is designed for easy operation: extend into the hole or recess, lock, and measure with a micrometer or caliper for precise readings. High-Quality Construction: Each telescoping gauge boasts a chrome-plated for enhanced durability and resistance. The bright, reflective not only adds to the tool's aesthetic but also extends its lifespan, ensuring long-term, reliable use in demanding environments. Unmatched Precision: Engineered with constant spring tension, these gauges maintain uniform contact pressure during measurement. This feature is crucial for achieving consistent and accurate readings, making the set an indispensable tool for quality control and precision engineering. Comprehensive Set: The package includes six telescoping gauges, neatly organized in a robust storage box. This arrangement not only protects the tools but also simplifies transportation and storage, making it a perfect choice for professionals on the move. Ease of Use and Maintenance: Designed with user convenience in mind, these gauges are straightforward to use and maintain. The set comes complete with a detailed instruction guide, helping both novices and professionals achieve accurate measurements effortlessly. Colour:silver Material:Metal The actual product may have slight color difference or difference, which not affect the use Package Contents: 6 * Telescoping Gage 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.