This grey Heavy Duty Ferrule is 22mm (0.85\"), seven eigths of an inch in diameter, and is harder wearing and longer lasting than most standard types of ferrule.The ferrule fits securely on to the end of a walking stick, helping to reduce the risk of the stick slipping and improving user safety. The Heavy Duty Ferrule is also suitable for use on other walking aids such as crutches and walking frames and is available in a range of different sizes, all of which can be found in this area of our shop, along with a range of money saving multi-buy special offers.We also stock a full range of standard replacement ferrules, suitable for a wide range of purposes and designed to fit all types of walking aids. We appreciate that there are a lot of options available, so please don\"t hesitate to call us, if you require any additional advice or guidance.