• Set of 2 wheels for furniture, sliding doors, cabinets, and windows • Made of high-quality iron and nylon, wear-resistant and sturdy • Equipped with ball bearings for greater stability and anti-jump safety devices • Surface treated with multi-layer paint for increased durability • Silent operation thanks to the nylon wheel, allowing you to open and close doors comfortably and quietly • Versatile, ideal for doors, drawers, windows, and cabinets in various indoor spaces • The package includes 2 sets of sliding wheels that can form two pulleys • It is recommended to install 2-4 pulleys per cabinet door for better performance • Makes opening and closing cabinet doors easier, making life more comfortable