WASHINGTON, D.C. -- Three St. Cloud Tech High School students were chosen for a once in a lifetime trip to the White House.

Grant Feldhege, Neil Molitor and Tyler Tran were selected to take part in President Obama's Science Fair after creating a new product called Dolly-2-Trolly.

The boys designed and manufactured the device, which clamps onto a two wheel dolly and allows a person to move trailers easily.

All three students are part of the school's SkillsUSA Engineering and Design competition.

The president honored 100 students from 40 different states in attendance at the fair.

The students advisor, Bill Garceau, received a call just five days before the fair informing him of the students' selection. With donations from area residents and organizations, the boys were able to make to the nation's capital in time.

All three students are planning to attend the University of Minnesota-Duluth's Mechanical Engineering program next fall.