HIGH QUALITY: Made of high-quality zinc alloy, this curtain roller is extremely durable. All rollers move smoothly within the track. Lightweight yet sturdy gliders ensure easy sliding. PERFECT SIZE: This metal rail roller measures 18mm in overall width, 14mm in total length, with a pitch of 9mm. Versatile and suitable for curtains, sheers, shower curtains, and more. DESIGN: Features a 360-degree swivel hook for smooth suspension. Silent wheels are rubber-coated, allowing quiet and smooth movement, contributing to a calm and elegant environment. EASY TO USE: For pleated curtains with needle hooks, simply insert the needle hooks into the eyelet at the bottom of the carrier. For curtains with grommets or loops, attach the hooks accordingly. APPLICATION: Ideal for curtain panels, room dividers, drapes, and valances. Suitable for use in windows, closets, bedrooms, offices, restaurants, and sliding doors.