What is this?These clips are mainly for holding fluorescent tube lights with aluminum channels on the ceiling places, walls, workbench, or shelves. Suitable for T5 Size LED light tubes, widely used in home electric appliances, offices, shops, and industries.What will I get?Color: White, Silver ToneMaterial: Steel, PlasticMounting Hole Dia.: 4mm / 0.16"Clips Size: 25.5mmx9mmx9mm / 1"x0.35"x0.35"Screw Size: 3.8mmx20mm / 0.15"*0.79"(Thread Dia.*Thread Length)Package Content: 20 x Clips; 20 x ScrewsAre there any advantages of the product?Clips are made of steel material, with good strength and good appearance. The screws included can help you do the fixing job well.How to use it?1. Make sure the screws go through the clips' hole.2. And then use the clips to clamp the aluminum channels of fluorescent tube lights.3.