10 pulleys in one set. Made of iron and plastic, with ball bearings inside, smooth shifting and durable. Suitable for your wardrobe, bookcase, glass cabinet and other office furniture. Note: Wheel diameter is 19mm, please check your furniture size to make sure the pulley to meet your needs before purchasing. Features: 1 、Each product has a unique manufacturing part number on the label inside the package that proves it has been qualified, which include part number, model number and inspection date information; 2、If you have any questions about the item, please provide us with the part number for manufacturing verification, your profits will be guaranteed. < p>3、10 pulleys in one set. 4、Made of iron and plastic, with ball bearings inside, to shift smoothly and durable. 5、Suitable for your wardrobe, bookshelf, glass cabinet and other office furniture. 6、Note: Wheel diameter is 19mm, please check your furniture size to make sure the pulley to meet your needs before purchasing. Specifications: Material Material: Iron and Plastic Color: Silver and White Brand Name: bqlzr Size: 6.5 x 1.9cm/6.5 x 1.9cm (lxdia) Wheel Diameter: 19mm Weight: 250g Package Content: 10 x Pulley Blocks Lucky Meet Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.