Description This office chair accessory is designed to enhance the functionality of your computer chair. The universal wheels allow for smooth movement across various surfaces, while the plastic sleeves ensure a secure fit. Ideal for replacing worn-out parts, this accessory helps maintain the stability and mobility of your chair, making it for home or office use. Features -Color:Black -Material:Plastic -Size:2.50X2.50X2.50cm/0.98X0.98X0.98in -Stylish design: the black design of these caster socket sleeves adds a touch of elegance and modernity to your office chair, making it a stylish addition to any workspace -Easy installation: featuring a snap ring wheel sleeve, these caster accessories are easy to install, saving you time and effort while ensuring a secure fit -Durable material: made from plastic, these caster sleeves are sturdy and durable, providing longlasting performance and safety for your office chair -Protective function: these black plastic caster inserts effectively protect your universal wheelbase, preventing damage and extending the life of your chair -Enhanced aesthetics: the design with edges and corners gives your universal wheels a more refined and sophisticated look, enhancing the overall appearance of your office chairPackage list: 30 x wheel sleeves