Wide Application: Works great for bookshelf, potted plants, stereo, table, desk; reinforce a broom closet door, flat surface joints, seams and cracks. Help to reinforce your bed frame, box, construction or installed furniture repair. High Quality: The bracket is constructed of high quality stainless steel, sturdy, strong, strong, waterproof and rustproof . Hand polished stainless steel finish, modern look and no worries about daily scratches, corrosion and tarnishing. Large Quantity: Set of 20 corner spacers + 80 screws, measuring 40x40x16mm . (1.55x1.55x0.6 inch. Mounting hole diameter: 5mm / 0.2" Hole quantity: 4 holes making them ideal for many applications. Easy to install: the mounting holes screws are recessed so the screws are flush with the surface of the brackets Super handy for common DIY jobs around the house Steel L corner brace for reinforcing straight corner joints.