Quantity: One Piece Smart Utility Tools for Flooring and Furniture Construction Overlapping Square with Marking Function, Used to Detect and Transfer Angles, as a Marking Accessory The easy-to-use one-handed lever allows you to comfortably fix convex angles on both sides, even in narrow work spaces, such as inside corners Innovative Sharpening Function: Built-in guide rail, easy to identify the straight line on the workpiece with a pen Draw Parallel Lines on the Movable Arm of the Square The Bend Stop is Positioned on the Workpiece for Easy Drawing of Angles or Parallel Lines A tool that allows you to accurately and conveniently measure angles (internal and external) and transfer them to the material being processed, especially useful during assembly work or furniture manufacturing. Also used to draw parallel lines along the edge of the fabric. You can move easily in just a few steps: 1. Place the angle iron exactly at the corner and align the arm. 2. We lock the angle steel rod to fix the size. 3. Transfer the obtained measurement value to the processing material. Good quality product