Compatible for Fairywill Replacement Toothbrush Heads for FW-507/508/551/515/917/959/2011FW-D1/D3/D7/D8(Black)

- Replacement Function: Designed as replacement parts for smart electric toothbrushes, meeting daily oral care needs.? - Model Compatibility: Fits 2, 2S and LBT203532A electric toothbrush models, ensuring proper and use.? - Color Options: Available in black and white, matching different toothbrush appearance styles.? - Smart Electric Adaptation: Works with smart electric toothbrush systems, matching the device’s cleaning functions.? - Easy Installation: Simple to attach and remove, enabling hassle-free head replacement when needed.