They are crafted from solid, unlacquered brass. Rustproof and scratch-resistant for long-lasting use. Available in natural brass, champagne bronze, satin nickel, and carbon black. Efficiently transfers weight to the wall or attached structure. Where To Use: Properly installed shelf brackets provide functional and stylish storage solutions in a wide range and can be installed in kitchens, bathrooms, bedrooms, home libraries, outdoor spaces, home offices, restaurants, and cafes. DIMENSION: Length 6.28"/ 159.5MM, Width 1.87"/ 47.5MM PROJECTION: 159.5MM/ 6.28" HOLE TO HOLE: 56.7MM / 2.23" INCLUDED: 2 (pieces) brackets in solid brass, 4 brass screws are included. MAINTENANCE: Allow to patinate over time, or use a brass copper brightener with no abrasive cloth.