Amazon has this Reach Clean Burst Waxed Dental Floss Dispensers 4-Pack for $3.69 when you checkout using Subscribe and Save. Shipping is free.

Regular Price: $10

BUY NOW: $3.88 Free Shipping at Amazon.com

Product Description: Give yourself a boost, with a burst of flavor. Reach Cleanburst removes up to 52% more plaque than Glide Original Mint.