Measuring 19mm in diameter, this Grey Ferrule is a high quality safety device that can be used with an array of different mobility aids.It is made of rubber with a steel insert making it incredibly hardwearing but also providing outstanding grip and stability which greatly reduces the risk of accidents or falls. It is easy to put on to the end of a crutch or walking stick and represents excellent value for money. The Grey Ferrule is part of a range of Ossenberg ferrules that are available from this area of the website.