Amazon has the 6-pack 2-Count (12-Count Total) Colgate 360 Floss-Tip Replaceable Head Toothbrush Refill Heads for $32 - 20% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) - $6 off at checkout = $18 with free shipping on $35+ or with Prime.