In a modern society with a modern lifestyle, besides the times spent at home with families, office premises became the second home, where we spend most of our time, where we work hard to strive for growth and a better standard of life. For the Quality and efficiency of jobs to be delivered, a comfortable, pleasant, professional environment is compulsory. An ergonomic Office Executive Chair will be the major factor that perfects your working environment. Chair Wheels / Castors have been the top few component parts that sit on the top of wear and tear lists, replacing them is never as difficult as it seems. These Chair Wheels / Castors are simply designed to be removed without any help of any tools, just simply apply force to pull it, and it will come off the 5-star chair base as one two three, In order to replace the new ones, Just "Plug" it in, and it will be ready to "Play". In Case you are uncertain about the specs and don't know if it will fit, it is easy to unplug it and measure it to make 100% sure before purchase. Standard Features & Specifications: Nylon Wheel/ Castor 60mm in diameter Standard Pin Size of 11mm Standard Pin Length of 22mm Comes in a pack of 5s for standard 5-star Bases What's in the box 1 x Pack of 5 Chair Wheels/ Castors