"Includes a high-quality synthetic brush head and 6 durable rods that extend up to 12 feet This efficient dryer vent brush can be used with or without a power drill and will help you achieve professional results Removing lint buildup from your dryer duct reduces drying time and improves dryer performance, while extending the life of your dryer Easy to use with simple instructions, this dryer vent cleaning kit delivers superior results and will help you avoid costly repairs Lint buildup can be dangerous and can potentially cause a fire, remove lint from your dryer regularly to prevent fires. dryer safety guard Clean the lint filter before or after each load A dirty lint trap reduces airflow and causes clogs in the dryer. duct from the dryer. It's like cholesterol in your clothes dryer. Never leave your dryer unattended You should never leave the house or go to bed with the dryer on. In the event that something happens, you will not be able to react. Keep your dryer area clean Do not store clothing or other flammable items on or around the dryer that could help spread a fire should it occur. "