Amazon is offering this 4-pack of Oral-B Indicator Contour Clean Toothbrushes for just $6.10 plus free Amazon Prime shipping  To get the final price, you must choose the Subscribe & Save option to save an additional 5% off the sale price and clip the $1 off on-age coupon. Originally priced at about $11, this is a great deal on a pack of four toothbrushes with comfort fit bristles.