These Plastic Twin Wheeled Carriers are the perfect solution for smoothly gliding your curtains along the track without any worry of blemishes. Made with durable plastic rollers, these carriers provide a seamless and effortless glide. The easy installation makes them compatible with I beam curtain tracks, allowing for easy movement from track to track and from open to closed. With a package of 10pcs, you'll have plenty to satisfy your needs. These versatile carriers are ideal for holding curtain panels, room dividers, drapes, sheers, and valances, making them suitable for a wide range of applications such as windows, closets, bedrooms, office, restaurants, and sliding doors.