These Oclean P1C8 replacement brush heads are designed for use with compatible Oclean electric toothbrush handles to maintain a consistent oral hygiene routine. This set includes two medium-stiffness heads featuring the W2 Optimal White and Plaque Control design, which helps effectively remove buildup and brighten your smile. Crafted from FDA-approved oral safe materials, the bristles are gentle yet firm enough for daily cleaning. To ensure the best performance and hygiene, it is recommended to replace the head every three months.