Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life. Features:Fast and simple fixing of boards and frames at an angle of 90 degrees. Mounting aid device for screwing or gluing the boards together. For corner and T-joints, even with different board thickness. Suitable for woodworking, cabinet and furniture repairing connections, photo frame reinforcement, wooden DIY projects, etc. Specifications: Color: orange+black Type: 1pcs, 4pcs (optional) Clamping range: 5-22mm, 10-22mm Total length: 78mm / 3.1in Maximum width: 85mm / 3.3in Maximum height: 51mm / 2.0in Package size: 200 * 180 * 60mm / 7.9 * 7.1 * 2.4in Package weight: 1pcs: 62g / 2.2ounce 4pcs: 323g / 11.4ounce Package list: (optional) 1 * Right Angle Clamp or 4 * Right Angle Clamp Color: Orange & Black Type: 1pcs, 4pcs (optional) Clamping range: 5-22mm, 10-22mm Total length: 78mm / 3.1in Maximum width: 85mm / 3.3in