20pcs Replacement Electric Toothbrush Head Bristle Brush Refill Compatible for Refills FW-D1/FW-D3/FW-D7(20 PCS BK)

- 20Pcs Practical Refill Set: Provides ample quantity for long-term daily replacement, reducing frequent repurchases. - Targeted Compatibility: Precisely designed to fit electric toothbrush models FW-D1, FW-D3, and FW-D7. - Reliable Bristle Performance: Functional bristles maintain consistent functionality to support daily use needs. - Secure Attachment Design: Tailored structure ensures firm fit on the toothbrush, preventing loosening while brushing. - Hassle-Free Replacement: Simple design allows for quick and easy installation, no complicated operations required.