the tunnel will provide a high-spped rail cimmute. -- ♪ >> here is one company making your kid look cools for your baby. how do you get parents to spend $20 on a pair of kids' sunglasses? the company's cofounder told us how. this week's small to big. ♪ >> they are safe and stylish sunglasses for kids. they bend, twist, straighten, and return to their natural shape. we came up with the idea. we were out on the runway and i noticed all the adults had sunglasses on and the kids were squinting in the sun trying to their moms and dads and the planes in the air. we launched these sitting in our respective tables. we surveyed our friends, who are parents. their biggest complaint is that they get lost. we started toying around and that is how we came up with the guarantee. we are the only brand the world that does this. i get a lot of reactions like, how do you stay in business and how do you stay profitable? in the three years of selling these sunglasses, we have gone from $1 million to $2 million to $4 million in sales. you have those people but those are the most enthusiastic brand. then he m