CEILING CURTAIN TRACKS: Heavy duty curtain rods are made of aluminum alloy, noiseless, smooth, do not bend or deform, can bear more weight, free to cut the size, smooth surface, professional expansion plugs and extension screws are needed if the ceiling is drywall. BEARING ROLLERS: Adopting bearing wheels and alloy hooks, built-in soundproof strips, no noise, all rollers can slide easily inside the track. Room Divider Rail Our curtain rail is perfect, the rail is thickened aluminum alloy, the thick mounting brackets and connectors are made of aluminum alloy, very strong and durable, universal bearing pulley, can bear heavier weight and very quiet. Wide Application Our curtain rod kits can be used for room dividers, bed dividers, wall dividers, bay windows, privacy, RVs, caravans, RVs, RVs, RV, garages, patios and even shower curtains. CEILING MOUNTED CURTAIN RAILS: The black and white curtain rods are painted to make the surface and interior of the rail very smooth and perfect, easy to slide, suitable for home, office, school, hospital, hotel, outdoor, RV privacy, space separation or holiday decoration.