Replacement Brush heads for DuoBrush Electric Toothbrush

Description Enjoy the best of both worlds. Easily switch between traditional sonic brushing and the Y-Brush brushing with just one handle. Two heads, one handle, unlimited convenience. *4-month replacement brush head*Hassle-free cleaning: Brush all your teeth anytime, anywhere*Sparkling smile boost*Lifetime warranty for Y-Brush handle with subscription When to change the brush head? Every 4 months, as soon as you see that the bristles are worn out.Y-Brush brush heads are designed without latex or silicone. They have 35,000 soft medical-grade nylon filaments to effectively remove dental plaque. These bristles are angled at 45° to follow the Bass method. Y-Brush brush heads are compatible with Duo BrushAdult Size (M) For everyone aged 12 and above. What's in the Box? - 1 brush head for the Y-Brush- 1 regular straight line brush head