Amazon.com : Replacement Toothbrush Heads Electric Toothbrush Brush Heads w/ Cap by ITERY for Philips Sonicare Proresults Diamondclean Flexcare Healthy White Plaque Control Gum Health Sonicare 3 series - 4 Pack : Beauty。买了Philips系列电动牙刷的童鞋可以考虑收这款刷头啦两倍于手动刷头的牙垢清洁力，超软刷头，曲线外形自然贴合牙齿形状，对于牙齿和牙龈十分安全，牙刷头在正常使用几个月后会失去硬度并逐渐磨损，此时蓝色提示型刷毛会渐渐褪成白色，建议三个月换一次刷头。