Silver Ion EMO Replacement Roller Brush Head 3pcs | KURUNSilver Ion EMO Replacement Roller Brush Head 3pcs Replacement brushes for High Wave and EMO. Just replace the brush and leave the main body as it is, and it is economical for the whole family to use. Comes in a special case that is easy to use at home or on the go. The recommended replacement period for toothbrushes is 2 to 3 months Generally, toothbrushes are replaced about once a month, but this product is 2 to 3 months. Replace it when the bristles