This aluminum alloy triangular ruler features a foldable 6-inch extension arm and embedded powerful magnet for easy and precise measuring. It also has an adjustable positioning tool and stainless steel needle drawing tool, making it a versatile and durable tool to have in your work pouch or pocket. Features 1. Foldable ruler bar: 6-inch fold-out extension arm for 6inch or 12inch layout needs, increase measuring distance after opening, reduce storage space after folding.convenient to carry. 2. Embedded powerful magnet: easy to open, no folding,no shaking off, durable. 3. Stainless steel needle drawing tool: the tail is screwed and fixed on the ruler body easy to carry. 4. Adjustable positioning tool: when in use, it can adjust to the required angel, tighten the nut positioning, press the middle adjustable lever to achieve precise positioning. 5. Material: solid aluminum alloy construction for durability. Portable: lightweight and easy to store in your work pouch or pocket. Specification Material: Aluminum Alloy Color: Black Package Includes: 1 x Ruler