Compatible for SOOCAS Sonic Electric Toothbrush Heads Replacement X1 X3 X3U X5 Teeth Brush(Black 4 pcs)

- Fits a Range of Handle Models: Designed to work with sonic electric toothbrush handles compatible with X1, X3, X3U, and X5. - Straightforward Attachment System: Features a snap-on base for quick and secure installation without tools. - Thoughtfully Shaped Bristle Layout: Bristles are arranged to assist in reaching multiple tooth surfaces during regular brushing. - Durable Construction for Routine Use: Built to maintain form and function over time with normal handling. - Convenient Replacement Pack: Ideal for refreshing your set at regular intervals to support continued device use.