10PCS Replacement Heads Compatible for Fairywill D7 / D8 Fw507 508 551 917 959 D1 D3 Black Toothbrush Heads

- 10PCS replacement heads fit compatible toothbrushes (D7/D8/Fw507 etc.), meeting long-term replacement needs. - Tool-free snap-on design enables quick installation without extra tools. - Soft bristles offer gentle contact while ensuring thorough cleaning. - Wear-resistant material ensures durable use for daily needs. - 10PCS quantity suits family use or long-term storage.