Specially designed for 6mm standard curtain tracks, widely applicable to various types of curtains, meeting the needs of different home or commercial environments. Make of to ensuring that the pulley remain smooth and without any abnormal noise during long term use. X shape design effectively reduces friction, making curtain opening and closing easier and more comfortable, enhancing daily user . Optimizing the structural design enables the pulley to have good load-bearing capacity, suitable for hanging heavy curtains, ensuring and reliability. During the sliding process, a quiet design is adopted to create a peaceful living .