It is being offered in 11.5-ounce bottles for $2.49 in Harrisburg and $2.99 in Savannah.
Depending on how the test goes, it's possible that Arby's may roll out the bottles nationally. It's a little too early for them to say though.
As my favorite of Arby's signature sauces, I'm looking forward to see how this turns out. For those of you who don't know, Horsey Sauce is Arby's horseradish mayo blend and pairs really well with their signature roast beef.