Oral-B Power Refills for CrossAction Power Max Soft Description
Also Fits: Cross Action Power Max
To Remove: Place enclosed QuickRelease tool on neck of toothbrush as shown and press (A), then slide brush head off toothbrush (B).
To Replace: Lay new replacement brush head parallel to neck of toothbrush (C.), then slide head toward handle until lock clicks into place (D). Check that brush head is firmly attached. Do not insert brush head at angle (E).