Description: Material: Made of galvanized iron, these sliding door pulleys are designed to be sturdy and long term use, ensuring smooth operation for your sliding doors.Product Dimensions: Each wheel in the set has a total length of 90mm and a width of 38mm, making them the great size for most standard sliding doors.Easy Installation: These wheels are easy to install on your existing sliding doors, cupboard pulley operates smoothly and quietly, providing stable performance over time.Application: Suitable for using in furniture hardware accessories, moving doors, glass sliding doors, and cupboard, cabinet.Versatile Use: This set of sliding door pulley is suitable for various types of sliding doors and cabinet doors, making it a versatile addition to your home or office. Specification: Material:Galvanized Iron Size Chart: 9cmx3.8cm/3.54inchx1.50inch Package Includes: 4 SetSliding Door Pulley Note: Please allow slightly errors 1-2cm differences due to manual measurement.