8 Set Metal Swag Hooks: Includes 8 sets swag hooks for ceiling hanging, with iron screw and plastic anchor plug, white color 8mm Hole Size: Flat round is about 0.63x0.65 inch(16x16.5mm), hole is about 0.31x0.28 inch(8x7mm), screw is about 1x0.3 inch(25.5x7.5mm); Note: the diameter of fabric cable is less than 0.31 inch/ 8mm. Aluminum Material: Ceiling hooks for hanging lights is made of quality aluminum, can stand the test of time Easy Installation: Just place the string or cord into the slot of the chandelier hook and screw it in, when you want to change the position of items, you can remove the hooks from the chandelier and reinstall them Wide Applications: Pendant light hook is suitable for cables, wires and network cables, such as hanging wires, PVC cables, fabric wires, pendant wires, and chandelier cables, easily fix the messy wires more neatly and methodically to the ceiling or wall, play its role in the dining room, living room, bedroom, garage and corridor