LITLANDSTAR Hidden Island Countertop Support Bracket is made of selected iron material with a matte black coating which is scratch-resistant and rust-proof. The 10mm thickness provides high bearing capacity and high stiffness to strengthen the island countertops, making sure your countertop investment is protected against cracking or tipping. It can safely support any type of island countertop, such as quartz, granite, wood, concrete and laminate countertops, suitable for both indoor and outdoor projects. Feature: 1. Made of 0.4" thick iron, more sturdy and durable, each island bracket can hold up to 300 pounds of weight. 2. The hidden bracket has a matte black coating, creating a rustic look for your kitchen countertops. 3. Designed with 45° no sharp edge, bringing great convenience and security to custom the island countertop. 4. Pre-drill two mounting holes, also include two sizes of matching screws in the package for easy installation. Specifications: Material: High-Quality Iron Thickness: 0.4 inch/10mm Package Included: 1 x Hidden Island Support Bracket 2 x Long Screw 2 x Short Screw