General description AlwaysH Toothbrush Head for Fairywill includes 5 replacement brush heads designed for various Fairywill models including FW507, FW508, FW515, FW551, FW917, FW959, FW2011, D1, D3, D7, and D8. The W-shaped brush head features black wavy bristles that adapt to the contours of your teeth, ensuring deep cleaning of gums and hard-to-reach areas. Technical specifications Material: ABS, TPE, Dupont nylon Quantity: 5 pieces Installation Easy to install and remove the toothbrush heads. Usage Recommended to replace the toothbrush head every 3 months. Primarily suitable for adult use. Other information Waterproof design, suitable for bathroom use.