Product name: Square feet Product weight: 220g Product specification: 17.5 x 30.8 cm. Applicable area : 250 * 120 mm Product material: stainless steel Color: silver Measuring range: 250 (mm) Accuracy: 1 mm Delivery area: four feet * 1 Laser engraved scales: Laser engraved markings embed the numbers into the aluminum material so that they will not wear out or fade. 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 corner template tools can measure inches and centimeters. Versatile and Versatile: Special angles/shapes for carpentry, masonry, flooring, roofing, tiles, etc. Create landscaping, tiles, pavers, wood, laminate and more! This perspective model tool is a must in every toolbox! Foldable, durable and portable. Simple operation, simply place the corner template tool on your work area, slide the ruler into the desired shape and tighten the screw. The four-sided ruler mechanism can be pushed 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 scratches. COMPACT DESIGN: The portable and lightweight multi-angle tool fits easily into the storage bag and feels good in the hand. It doesn't come in your kit like other template tools. Features: Unlimited applications, widely used for measuring brick, paper, stone, tile, wood and any other material of your choice. The perfect corner aid for builders, craftsmen, designers, carpenters, engineers and renovators.