– A fleet of high-tech robots has deployed at a northern Virginia university for the noble purpose of delivering pizza, doughnuts and coffee on demand to students.

More than 25 knee-high, cooler-shaped robots began delivery duty Tuesday at George Mason University in Fairfax.

Ryan Tuohy, senior vice president for business development at San Francisco-based Starship Technologies, which makes the robots, said hundreds of delivery orders were placed on the service's first day.

The company's partnership with Sodexo, which has the catering contract at George Mason, means students can get deliveries from Blaze Pizza, Starbucks and Dunkin for a $1.99 fee. A convenience store is also participating and more vendors are expected to join the program later.

The six-wheeled robots can climb curbs and hold up to 20 pounds of cargo.

The robots drew smiles and bemused looks from students who stopped to take pictures as they rolled around campus Wednesday making lunch deliveries.

Justin Plassmeyer, a senior computer science major, received a pizza delivery Wednesday as his friends watched and took photos.

The robot took about 8 minutes to make a delivery that a person walking briskly might have done in 5. The robots are slowed a little by the need to use ramps instead of stairs.

"It's not the fastest thing in the world," Plassmeyer said. "If you're really hungry, it's probably faster to walk and get your food yourself. But if you're just a little bit hungry, it's perfect," he said. He also said he appreciates the novelty of "having a little robot bring your food."

Tuohy said college campuses are an ideal setting for Starship robots to operate: college students are interested in technology and innovation, and campus grounds are generally pedestrian friendly.

The robots are "super deferential" and will stop if they detect pedestrians to avoid collisions, Tuohy said.