1. Wide application: Suitable for bookshelves, potted plants, stereo equipment, tables, desks; reinforces broom closet doors, smooth joints, seams, and cracks. Helps stabilize bed frames, boxes, setups, or fixtures and fittings. 2. High quality: Bracket is made of high-quality stainless steel, sturdy, waterproof, and rustproof. Hand-polished stainless steel provides a modern look and resists daily scratches, corrosion, and tarnishing. 3. Large quantity: Set includes 20 corner braces and 80 screws (40 x 40 x 16 mm). Mounting hole diameter: 5 mm. Number of holes: 4. Ideal for a wide variety of uses. 4. Easy to install: Screw holes are recessed to allow screws to sit flush with the surface of the brackets. L-shaped steel corner brace reinforces right-angled corner connections. 5. What you get: Quality products and reliable support. with any questions—we respond within one business day.