Premium Heavy Duty Floating Shelf Brackets Solid Steel Wall Mounted Bracket for Concealed Wood Shelves with Screws and Wall Plugs for Drywall and Concrete Wall Invisible Hidden Supports 4 Pcs Black. Heavy-Duty Strength - Built with 12mm solid carbon steel and a 4mm backplate, using riveting for maximum strength, preventing weld distortion for sturdy, reliable support. Innovative Design - Features a V mark for easy alignment and wavy fixing points for flexible installation—no need to worry about bracket orientation. Rust-Resistant Finish - Powder-coated for enhanced corrosion protection, ensuring long-lasting durability and a sleek, premium look. Versatile Use - Perfect for various shelf projects in your kitchen, living room, bathroom, or office, offering both modern style and reliable functionality. Package Includes - 4 Floating Brackets, 16 Screws, 16 Wall Plugs and 16 Drywall Plugs.