Keeping bird feeders clean between refills is an important step in preventing mould and even the spread of disease between birds. Most feeders host several bird species, so it's important to keep the place as hygienic as possible. The bristles on the Bird Feeder Cleaning Brush are supple enough that it can be wedged into quite tight spots, and it's the perfect length and shape for cleaning tube feeders. The bristles will not scratch glass or plastic, and they're held firmly into a twisted metal handle. The brush measures 54cm (21.25") from tip to tail.