General description The soft roller blue hose is designed for use with V7, V8, V10, and V11 soft roller cleaning heads, ensuring a high compatibility with original equipment. Made from high-quality materials, this hose is soft and flexible, allowing for easy bending during use. Technical specifications Material: Plastic Color: As shown Package Contents: 12 hose accessories Measurement allowed error: +/- 1-3 cm Usage Replacing the lower nozzle hose helps maintain effective cleaning by filtering household dust, fine powder, and drywall and cement dust. It is recommended to replace the vacuum cleaner hose every 3-4 months to ensure optimal suction power and prolong the service life of the vacuum cleaner.