High-strength Locking Structure: The contour gauge is equipped with a high-strength locking structure to ensure accurate measurement. It uses a thick aluminum plate connection and a skeleton composed of 148 pieces of 3 mm blades, providing a stable clamping force, effectively fixing the measured shape, and is suitable for the precise replication of various complex contours Dual-scale Design: Both sides of the shell of the contour gauge are marked with metric and imperial scales, meeting different measurement needs. It is convenient to quickly switch between units, improving work efficiency, and is suitable for various professional scenarios such as woodworking and metal processing Self-locking Device: The circular chrome-plated self-locking knob on the right side is matched with the splicing lock catch on the left side to ensure that the blades are firmly locked, preventing sliding, and it is easy to operate and durable. This makes the measurement and profiling process more stable and reliable Lightweight Material: The marking gauge weighs only 380 g, with dimensions of 26.6 cm × 13 cm × 2.7 cm. The black ABS skeleton shell is sturdy, durable, and easy to carry. It is suitable for on-site operations and use in the studio, enhancing work portability Wide Application & Ideal Gift: A must-have template tool for kitchen fitting, flooring, tiling, and general construction. It’s the perfect practical gift for DIYers, professional handymen, or as a Father’s Day / Christmas present for the craftsman in your life, Weight: 1.873929227 pounds, Manufacturer: Hang Zhou Great Star Industrial Co.,LTD