Features: and high quality Material: Made of high-quality metal and nylon, strong and durable Style: Available in 4 styles; select the appropriate specification based on your needs Load Capacity: Durable construction with reliable load-bearing performance Design: Reinforced metal housing with increased hardness for enhanced strength and load support Application: Suitable for track reversal, rolling gates, sliding doors, industrial machinery, wire rope guide rails, container racks, pet doors, and baby gates Package Includes: 1 x Sliding Door Roller Kit Specifications: - Material: Metal - Weight: 42g or 32g (varies by style) - Size: 41mm (1.61 inches) - Type: Double Convex Wheel, Double Groove Wheel, Single Convex Wheel, or Single Groove Wheel (available options) Note: 1. Please allow 1–2 cm variation due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the actual color of the item may vary from the image shown.