Standard castor for your office chair, 50mm and 60mm castors available.
Provides free wheeling movement on most floors, price is for one castor
Note…..Hard-tyred castors are unsuitable for use on hard floors or firm chair mats in which case soft tyred castors should be used. Soft tyred castors are distinguishable by the tyre being a different colour to the body of the castor. These are also known as non friction castors