Durable and Sturdy: The stand is made of iron, which is durable, strong, tough, waterproof and rustproof. Hand polished stainless steel finish for a modern look without worrying about daily scratches, corrosion and tarnishing. Safety Design: Countersunk mounting screw hole design, so that the screws are not exposed outside, protect the screws and make the appearance more polished; arc design keeps edges secure and protects your hands from scratches. WIDE APPLICATIONS: Ideal for shelves, potted plants, stereos, tables, desks; Reinforce broom cabinet doors, flat seams, seams and cracks. Help reinforce your bed frame, box, structure or repair installed furniture. EASY INSTALLATION: The screw holes are recessed so that the screws are flush with the surface of the bracket. Ideal for general DIY jobs around the house. L-shaped steel gussets for reinforcement of right angle corner joints. Quantity and size: a set of 20 corner braces + 80 screws, the size is 40 x 40 x 16mm. Installation hole diameter: 4.3mm; number of holes: 4 holes. making them ideal for a variety of applications Note: Image is for illustrative purposes only, please refer to the actual product, thank you. ! ! Material: iron Product color: black Product size: about 40*40*16*2.0mm thick Weight: approximately 380g Quantity delivered: 100pcs/set