Features: The pin is compact, not loose and not easy to fall off, while maintaining good mobility. Multifunctional design with metric and imperial measurements, small size, easy to carry and use, corrosion resistance. The maximum profile length that can be measured is 150mm, and the maximum profile depth is 45mm.When measuring the maximum depth, be careful not to let the pin fall out. Smaller diameter pins can more accurately reproduce irregularly shaped contours. This metal contour gauge is not lockable, so do not pull out the pins, otherwise all the pins will be scattered. for Ideal for most kinds of carpentry, wood working and contour matching jobs. Specifications: Material: Metal+Plastic Size: 150x85x45mm/ 6.1x3.3x1.8 in Depth: 45mm/ 1.8 inches Package Includes: 1x Contour Gauge note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.