Set Contents: Chimney brush head x 1, hex bar x 1, and 11 durable rods. Brush Material: Nylon. Pole Material: Nylon. Rod Length: 16.1 inches (41 cm). Brush Diameter: 3.9 inches (10 cm). Bristle Length: 1.6 inches (4 cm). Long life: Both the pole and work head are made of reinforced nylon, which is wear-resistant, long and hard to break. This Dryer Vent Cleaning Kit will give you excellent results. 【EASY TO OPERATE】:Easy to use with simple instructions, this dryer vent cleaning kit will provide excellent results and help prevent costly repairs. 【Professional Cleaning Brush】:This efficient dryer vent brush can be used with or without electric drills and will help you achieve professional results 【Improve dryer efficiency】: Removing lint build up from the dryer duct will help reduce drying time and improve the performance of the dryer. Use this brush to clean the accumulated lint in the fabric dryer vent pipe. Dryer Vent Cleaner Kit reduces your electricity bill by removing hidden lint. It can also be used to clean dust and pet hair under furniture and appliances. Prevents Fire: Prevents your beautiful home from risks of fire. Lint buildup can be dangerous and can potentially cause fire. To avoid a fire in the dryer, remove the lint from the dryer regularly.