4/8pcs Replacement Toothbrush HeadsCompatible for PhilipsSonicare Replacement Electric Brush Head 4100 6500 6100 7500 5300 11(Black 16pc)

- Suitable for adult daily oral care. - Easy to replace, can be installed without tools. - Fits closely to the body, providing stable vibration transmission. - The bristles are durable and not easily bent. - Multi-pack combination, higher cost-effectiveness.