Material: Nylon,Iron,PPSize:55mm(2.17in) /65mm(2.56in)Color: blackcan rotate 360 levels flexibly, delicate and quiet.suitable for changing previous and broken wheels on tables, garage shelves, chairs, lockers, shoe racks, bookshelves and different furniture.Widely utilized in homes, offices, libraries, bars, shops and different places. Package Included:1Pc* Swivel Plate CastersNote:Due to the sunshine and screen surroundings difference, the item's shade may be barely varied from the pictures.Please enable slight measurement difference because of various manual measurement.