High quality material with clear calibration. Near the center of the positioning ruler, there are 45 degrees and 22.5 degrees for quick angle measurement. Durable and clear scales, high hardness, not easy to rust, easy to repair, suitable for more rooms. Suitable for gluing and assembling boxes, drawers, frames, furniture, cabinets, etc. Easy to carry and easy to use without damaging the edges. Suitable for wood, metal at right angles and 90 degree welding, etc. Dimensions: 10x10x2cm. Features: 1. High quality material, clear calibration. Near the center of the positioning ruler, there are quick angles of 45 degrees and 22.5 degrees. Sturdy, thicker and wider for more parts. 2. Create the perfect corner for your woodworking project. 3. Embossed engraving in inches and millimeters on the inside and outside edges of each bracket. Sleek interior grooves further enhance square precision. 4. Ideal for gluing and assembling boxes, drawers, frames, furniture, cabinets, etc.