1. Strong and Durable The angle measuring tool is made of aluminum alloy and steel material, which is durable and not easy to bend, ensuring longterm use. The lightweight, compact straight ruler is portable and easy to carry. 2. Professional Design The scale on both sides is engraved into the ruler, allowing you to read it clearly. It includes 1 stainless steel drawing needle that can also serve as an extra pen for you. It has truly useful additional features like a drawing pin and an antiejection stop. 3. Universal Combination Angle Precision redefined! Elevate your measuring and drawing game with this quality, professional multiangle measuring tool. This hole ruler features a hidden antidrop device! So you don't have to worry about the rulers falling while working. 4. MultiAngle Measuring Ruler 90degree and 45degree stops for versatile applications, providing more options to help you measure things accurately. Upgrade your tools for precision!