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 + 40 screws, measuring 30x30x16mm / 1.2x1.2x0.6 inch. Mounting hole diameter: 5mm / 0.2" Hole quantity: 2 holes making them ideal for a range of applications. Easy to install: screw holes are recessed so screws are flush with the surface of the brackets Super handy for common DIY jobs around the house Steel L-shaped corner brace for reinforcing straight corner joints.