The chair caster replacement made of safe material is easy to use, wear-resistant, , and are not easy to damage. wheel is excellent replacement part for chair that can meet your needs well. Reasonable design makes it more convenient to change the direction, simple to use. Features -Color:Black -Material:Plastic -Size:8.30X6.10X6.10cm/3.26X2.40X2.40in - Lasting use: Made with material, these chair wheels can withstand various conditions and daily wear, ensuring lasting performance. - 360-Degree swivel: These chair casters is designed with 360-degree swiveling function, allowing for easy and flexible movement, improving office efficiency. - Silent operation: Featuring its noise-free operation, these chair wheels work well with the floor, ensuring a peaceful working environment. - Easy installation: Simply insert the wheels into the chair base without the need for special tools, saving your time and labor. - Heavy duty: The casters have a strong load bearing capacity, not easy to break, can be used by people of all figures. Package list: 1 x Office Chair Caster