The "Rattlesnake" combination seems to denote steak, creamy jalapeno sauce, and pickle jalapenos, which the seasoned fries come topped with in addition to nacho cheese sauce.
There's also a new Rattlesnake Burrito, which consists of seasoned fries, nacho cheese sauce, steak, creamy jalapeno sauce, and pickled jalapenos, wrapped up in a warm flour tortilla (i.e. it's the Rattlesnake Fries wrapped as a burrito).
Both Rattlesnake options are available for $2.99 a piece for a limited time in Columbus through mid-September.
The test marks the second that's going on in Ohio this month as Taco Bell is also testing Reaper Ranch Fries in Cincinnati.
Photo via Taco Bell.