Genuine JTF sonic smart toothbrush replacement heads compatible with JTF rechargeable electric toothbrush handles: P200 Moderate brush head provides effective plaque control and increases plaque removal by up to 10x more plaque vs manual toothbrush our replacement heads for JTF P200 with high-quality nylon bristles offer excellent elasticity and firmness—providing superior cleaning without irritating gums or damaging teeth Regular brush head replacement is part of a better oral health care routine. Instructions: Dentists recommend replacement every 3 months for optimal results Includes: 9 pcs moderate brush heads meet the needs of 27 Months to protect your teeth and have a comfortable brushing experience JTF Brand Sonic Electric Toothbrush Replacement Brush Heads