Features: Pergola brackets come with pre drill holes, making it easy to install and easy to use. Ensure your wooden building project is firmly supported. Make of thickened metal, it will not easily break off and Not easily deformed when using. The inner diameter of the T shaped bracket is 3.55inch, suitable for 4x4 posts (actual 3.5x3.5inch), and the other side can be adjusted according to the actual size of the posts. These brackets is extremely thick and heavy. Enduring craftsmanships provided additional structural stability and support for wooden construction projects. Suitable for courtyards, patios, commercial venues, you can build the perfect outdoor place gathering or entertainment. Specifications: Materials: Metal Length: about 23.3cm/9.17inch Package Includes: 1set Pergola Corner Bracket note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.