Set of 5 Black Urethane Swivel Casters I had been storing these without opening them in the condition shown in the first photo, but I opened them for the purpose of taking pictures, as it was difficult to see the texture of the contents. The original outer bag was partially torn and not very clean, so I will put them in a new OPP bag and wrap them in cushioning material before shipping. Upon opening, there were some jagged areas, but they are new and unused. Size: Wheel Diameter: 5cm Insertion Fitting Length: 2.2cm Insertion Diameter: 1.1cm Instant purchase OK! Will ship within 24 hours. Thank you.