DescriptionDesigned for window curtain, can be used to replace curtain track roller. Made of premium material for long time and durable use. It has a simple design, but very practical in use, giving you a good using experience. Also can be a good gift choice for your friends, they will like it.Features-Color:White-Material:Plastic, alloy-Size:3.50X1.17X1.17cm/1.38X0.46X0.46inRoller diameter: 11.7mmRoller gap: 4mmRoller middle gap: 12.5mmSuitable track height: 13-20mmSuitable track bottom width: 10-12mm- Made of high grade plastic and alloy, enough quantity is enough for your daily use.- Perfect for holding curtain panels, room dividers, drapes, sheers, valances, and etc.- Can scroll freely and slide smoothly within the track, increase your space and give you privacy.- Widely used in windows, closets, bedrooms, offices, restaurants, sliding doors, etc.- Simple in structure, easy to use, not easy to deform, you can use it with confidence.Packing list: 50 x Curtain Track Rollers