Can be used to build a frame, serve as a corner connected, like fastening chair, wooden table, desk, bookshelf, shaky furniture, etc.Number of products: 2Product material: cold rolled steelSurface treatment: wear-resistant black paintColor: BlackNet Weight: 600g-1400gInstallation method: screw fixingFeatures: corrosion resistance, high temperature resistanceProduct size: 150mm(5.9in),200mm(7.9in),250mm(9.8in)1. Please use an electric drill, a spirit level and a mallet for mounting. 2. Avoid bumping during installation. 3. Please fix the product to a lightweight concrete wall or brick wall. If you plan to attach it to a plasterboard, please purchase suitable screws from a professional dealer.Shelf Brackets & Supports -- Bracket is great for both indoor and outdoor. Compatible with wood, plastic, or metal shelving boards.