HEAVY DUTY CARBON STEEL BOX SHAPE The pergola kit steel brackets is made of durable steel structural ,black powder-coat ,for rust-resistant and sturdy enough STRONG AND STURDY The pergola brackets 4-Way bracket Size: 13.2*7.52*6.3inchinch,Quantity: 2 PCS,Flange Base Size：6.89*6.89*5.9inch,Quantity: 2 PCS,the pergola brackets post is weatherproof and stable, so even in the rain and storm weather, the pergola still can stand outdoors stably. EASY INSTALLATION The Woodworks Pergola kit contains 8 steel brackets and all the necessary hardware,Simply cut the wood to your desired length and assemble. COMPLETE ACCESSORIES Adequate Accessories,contain a wrench,16 x 3/8 Expansion Bolt and 64 x Self-tapping Screws are supplied 4×4 PERGOLA BRACKETS KIT The heavy steel braces are strong and stabilizing. The high quality alloyed steel will give your new pergola a modern and beautiful look! REINFORCEMENT DESIGN Heavy Duty thickening plate makes the pergola brackets breakage-proof and deformation-proof, so it will not easily break off and be out of shape when using.