Product name: Square Feet Product Weight: 220g Product Specification: 17.5 x 30.8 cm. Applicable area: 250*120mm Product material: stainless steel Color: silver Measurement range: 250 (mm) Accuracy: 1 mm Delivery area: four feet * 1 Laser etched scales: Laser etched markings embed the numbers into the aluminum material so they will not fade wear or fade. The maximum readability and durability of the metal ruler saves money on other rulers. Multi-angle measurements: Place the T-ruler at a 90 degree angle and place parallel wooden blocks in the T-ruler to align the bricks. You can then measure exactly the angle or shape you want by tightening or loosening the screws. These angle jig tools can measure inches and centimeters. Versatile and versatile: special angles/shapes for carpentry, masonry, floors, roofing, tiles, etc. Create landscaping, tile, pavers, wood, laminate and more! This perspective model tool is a must in every toolbox! Foldable, durable and portable. Simple operation, simply place the angle jig tool on your work area, slide the ruler into the desired shape and tighten the screw. The four-sided ruler mechanism can be pushed in and locked at any desired angle as a reusable design for unlimited applications. Portable and easy to store, it comes with a protective bag, which can better protect the measuring ruler from being scratched. COMPACT DESIGN: The portable, lightweight multi-angle tool slips easily into the storage bag and feels great in the hand. It doesn't come in your kit like other jig tools. Features: Unlimited applications, widely used for measuring brick, paper, stone, tile, wood and any other materials in your choice. The perfect corner aid for builders, craftsmen, designers, carpenters, engineers and remodelers. lucky to meet Note: The data is all measured manually, please allow some 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.