Gary Heffner of Augusta correctly guessed that it is Oral B Glide Dental Floss (twin pack). CVS has it on sale for $6.49 through Saturday (8/19) with your Extra Care Card. Use the printable $2 off coupon, plus you'll get $2 back in Extra Bucks for a future purchase, so it's like getting the floss for $2.49 plus tax. That's $1.25 per container!