Features: Brand new and high quality Steel Construction:Crafted with high quality steel, these woodworking marking gauges offer exceptional hardness and toughness for reliable performances Versatile and Convenient:With inch and millimeter measurements, a sliding stopper, and precise positioning, these gauges are perfect for architects, engineers, artists, and anyone in need of accurate measurements. Suitable for Professionals and Hobbyists:Whether you're a student, office worker, architect, or engineer, this practical tool is essential for your daily tasks at school, work, or home. Wide Ranges of Applications:From various projects to artistic creations, this metal gauge can be used in different scenarios, providing accurate measurements for your needs. Durable and Reliable:Each gauge is made with durable steel, ensuring long lasting use without compromising on quality. Save money without sacrificing performances with these cost effective marking gauges. Specifications: Material:Aluminium Alloy Length:150mm，200mm，300mm Package Includes: 3x Scribing Ruler note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.