About this item 25MM curtain straight track PVC pulley Size: Total length: 25mm, width: 10mm, top 11mm Material: The curtain accessories are made of plastic, the plastic hook is strong and durable, not easy to deform, soft sound and smooth, strong load capacity, small and invisible to meet our home curtain assembly. Easy sliding: Each curtain rail glider is specially designed with a smooth surface, the curtains can slide smoothly on the track, opening and closing is easier and reduces the noise when sliding. Not easy to rust: Compared with metal hooks, plastic materials are not easy to rust and will not stain your curtains with rust stains so that they can be used for a long time. Sufficient quantity: The package contains 25 plastic curtain hooks, the curtain glider fits most curtain rails,which can meet your daily needs, enough to use and replace.