Set of 6 heavy duty industrial black shelf brackets - T-shaped with lip(planks not included). If anything is missing from the package, please contact us.,Package includes all hardwares you need, concrete plugs x 16, dry-wall plugs x 16, black self-tapping screws x 24. Please use different plugs accordingly.,Made of high quality galvanized steel square pipe, black powder coated. Effective length for installing your plank: 6" - 15.5 cm, 8" - 20.5 cm, 10" - 25.5 cm, 12" - 30.5 cm.,Firm welded structure, fulfills your desire for heavy-duty brackets. Each pair of these brackets can hold 88 lb (40 kg) when they are mounted on concrete wall, they have less weight capacity when they are mounted on dry-wall.,These well-made floating shelf brackets are very easy to install, they are very practical and can fit a variety of styles of wood easily.