Features 1. High Quality Material. 90 degree positioning square made of high quality aluminium alloy with anodized surface that insures optimal durability and lightweight usability. 2. 90 degree angle ruler. 3D woodworking ruler with clear scale in inches and millimeters for measuring length to positioning more accurate. 3. Easy to Use. beveled edges, easy to handle and won't damage fragile cutting edges. 4. Rounded Corners. Beveled edges, No damage to hands, no deformation. Easy to handle and won't damage fragile cutting edges 5. Wide Application. Carpentry right angle jig set professional use to assemble and DIY by claping boxes, drawers, cabinets, frames, furniture cabinets, etc. Specifications: Material: Aluminium Alloy Color: Red, Blue Type: 1pc without box, 2pcs with box Size: About.12x12x1.6cm Angle: 90 Shape: L type Package includes(optional): 1pcs x Square Ruler or 2pcs x Square Ruler+1pc x Box Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.