The Heritage Brass Square Stepped Cupboard Knob Polished Chrome features a perfectly smooth face with a stepped base. Knob Finish This knob has a polished chrome finish and would be suitable for all types of fitted or free standing furniture in residential situations and is simple to fit and maintain. Cupboard Knob Dimensions The cupboard knob measures at 32mm, the base measures at 17mm and it has a 25mm projection. It is supplied with appropriate fixing screws.