About this item colorblack Durable & Sturdy: The bracket is constructed of high-quality stainless steel, heavy duty, solid, sturdy, waterproof and rustproof. Hand polished stainless steel finished, modern look and no worry about daily scratches, corrosion, and tarnishing. Safety Design: Countersunk mounting screw holes design makes the screws not appearing outside, protecting the screws, and making the appearance smoother; Curved design makes the edge safety and protect your hand from scratch. Wide Application: Work perfectly for books shelf, potted plants, stereo, table, office desk; reinforcing a broom closet door, flat surface joints, seams, and cracks. Help sturdy up your bedframe, box, installed furniture construction or repair. Easy to install: The screw holes are recessed so that the screws sit flush with the surface of the brackets Super convenient for general DIY jobs around the house. L shape steel corner brace for reinforcing right angle corner joints. Quantity &Size: Set of 20 corner braces + 40 screws, measuring 20x20x16 mm / 0.8x0.8x0.6 inch. Mounting Hole Diameter: 4.5mm; Hole Quantity: 2 Holes. Making them ideal for a range of applications.