Package Contents: You will receive 10 furniture casters total weight about 300g 10 screws 24mm long and 20 screws 14mm long. There are enough matching casters and screws to meet your daily needs. No noise: The carbon steel and nylon casters are polished during the production process and the surface is smooth. No loud noise when transporting. The entire ball transmission device rolls smoothly and quietly in the roller bearing. So you don't have to worry about disturbing your family or neighbors. Large bearing capacity: The maximum bearing capacity of each watering can is 15 kg which is suitable for most objects and can be rotated 360 degrees during use which greatly reduces the labor intensity of workers and improves work efficiency.High quality materials:The main body of the ball bearing is made of galvanized carbon steel which is scratch resistant corrosion rust and not easy to damage. The drive shaft ball is made of high quality nylon which is durable wear-resistant and stable. Long service life. Wide range of applications: Furniture casters not only can help to transport goods at home such as: cabinets sofas carts shelves and other furniture transfers but also widely used in the home. industry such as: traditional systems feeding systems processing systems packaging machines and auxiliary machines and much more.