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Amazon [amazon.com] has 2-Pack Oral-B Pulsar 3d White Advanced Vivid Soft Toothbrush (Colors May Vary) for $ 4.75 when you checkout via Subscribe & Save. Shipping is free.

Note, you may cancel your Subscribe & Save subscription any time after your order ships. Select the later date from the "First Delivery On" menu to get traditional S&S checkout instead of adding to your cart.