Description: Quality Material: This sliding glass door roller is made of premium iron, ensuring its durability and longevity. It's sturdy and designed to withstand daily useEasy Installation: The product is easy to install and disassemble, making it a convenient choice for homeowners or office managers looking to upgrade their doorsVersatile Use: Ideal for various settings such as residential homes, flat doors, office doors, etc., this sliding glass door roller offers a practical solution for your needsSize: The product measures 12cmx5cm/4.72inchx1.97inch with the wheel measuring 12.2cmx2.5cm/4.80inchx0.98inch. Applicable for glass thickness 10-12mm, providing an optimal size for most standard doorsPackage Includes: Each purchase comes with 1complete set of the sliding glass door roller Specification: Material: Iron Size Chart: 12cmx5cm/4.72inchx1.97inchwheel : 12.2cmx2.5cm/4.80inchx0.98inch Package Includes: 1 Set Shower Door Rollers Note: Please allow slightly errors 1-2cm differences due to manual measurement.