High quality materials: wheel frame made of zinc alloy, durable; rubber coated wheels, smooth surface, no noise when sliding; stainless steel rings, excellent load-bearing, rust-proof and strong. Easy Installation: Easy to use, check the appropriate size of your house for installation, suitable for bar curtain rails; the carrier moves easily from track to track, open to close. Smooth Gliding: The silent wheels are covered with rubber, which glides smoothly and quietly and creates a quiet and elegant living environment for you. Hanging Rail: The stainless steel hook is lightweight and smooth, and the hook is designed to be hung on a 360 degree swivel rail suspension, which is fashionable and classic. Application: Ideal for holding curtain panels, room dividers, curtains, and valances. Widely used in windows, closets, bedrooms, offices, restaurants, sliding doors, etc.