Material: Iron galvanized. Durable, smooth surface, no scratch, not easy to break or deformation, can be used for a long time. The vertical louver can be easily and safely installed on the wall. The L-shaped bracket and clip design can be directly fastened without screws, which is simple and convenient. Suitable for the internal or external installation of the vertical louver wall. Easy to install on wall or ceiling; wingnaut operation allows easy adjustment for good installation, with 17 / 8-inch rails for easy and safe installation of vertical blinds. Size: L-shaped bracket: 2 * 5 * 3.5cm / 0.8 * 2 * 1.4 inch; clip: 2.2 * 5.6CM / 0.8 * 2.2 inch; vertical louver wall bracket, not occupying too much space in the room, durable and light weight, easy to install and store. You will get 4 sets of brackets (4 L-shaped brackets + 4 clips) to meet your daily needs. The L-shaped bracket can be installed for blinds and other similar curtains.