General description You will receive 20 curtain track rollers of the same size. These rollers are designed for smooth operation and minimal noise, making them ideal for various window settings. Technical specifications Wheel diameter: 14.5 mm Outer diameter: 17.5 mm Suitable for curtain tracks with a width of 18-23 mm Material: High-quality plastic and stainless steel Installation Installation is easy: simply insert the pin hook into the eyelet on the bottom of the bracket. For curtains with holes or loops on the back, simply add hooks. Usage The track rollers can be installed on windows in various rooms such as the living room, study, bedroom, office, piano room, and dining room, allowing you to easily draw your curtains. Other information The double-layer, low-noise design of the slide track ensures that the rollers produce minimal noise when drawing the curtains, allowing for a quiet morning experience. Please note that these data are measured manually, and a 1-3 cm error may