Designed for versatility, our metal bearing rollers can be used with various curtain track systems, including flexible and adjustable tracks. These rollers are ideal for creating a seamless curtain experience, whether in your living room, bedroom, or office. Features -Color:Silver -Material:Zinc alloy, plastic -Size:4.10X1.80X1.30cm/1.61X0.71X0.51in -Robust metal bearings: featuring sturdy metal bearings, these rollers provide reliable performance -Effortless installation: these rollers are designed for installation, saving you -Use:curtain track pulley is a pulley that can be used with curtains of various weights, , smooth and easy to pull, and can be assembled in multiple sets -Movement: experience smooth and silent curtain operation with these efficient rollers -Universal fit: these rollers are suitable for a wide range of curtain tracks, making them versatile for different installations Package list: 4 x Curtain Track Rollers