Material: Zinc alloy Color as shown Size: about 120*15mm/4.7*0.6in Packing list: 2 * Rollers Premium Material: This sliding barn door hardware is made of zinc alloy, which is durable, stable in characteristics and long service life. Keep it Balanced: Hardware rollers can help the door keep balance, prevent wobbling and ensure smooth sliding. Superior Performance: Home sliding door pulleys increase rolling, smooth and quiet. High quality and durable nylon discs. Convenient landscaping: The push-pull barn door wheel allows the door to move, save space, decorate and beautify your home, as well as for your daily life. Stable and wear-resistant: increases rolling, smooth and quiet. High quality nylon disc, wear resistant. Flexible operation, stable quality and long service life. Features: Zinc alloy material, no rust, durable. Increased scrolling, smooth and quiet. High quality and durable nylon discs. Flexible operation, stable quality and long service life. Balance the door to prevent it from tipping and make sure it slides smoothly. Good quality productProducts from GuanGuan's store