Quiet: Features a silent curtain rail track pulley design that operates without noise. Compartment curtain tracks with smooth sliding gliders. Lightweight: Wheels glide smoothly along the track. The pulley is lightweight yet offers high load capacity and strong environmental adaptability. Material: Curtain roller gliders are made of PP material, ensuring lightweight construction and smooth rolling and sliding performance within the track. Easy to use: This curtain rail track pulley fits most square pulley tracks and is suitable for curtains, drapes, valances, and shower curtains. Curtain accessory: Ideal for installing curtain panels in wardrobes, offices, bedrooms, restaurants, sliding doors, and more. Specification: Material: PP Size: 2.5cm x 1cm / 0.98 inch x 0.39 inch Package Includes: 100 x Curtain Rail Pulley Note: Slight variations may occur due to manual measurement and differences in display monitors.