If the weather permits, Seattle artist Susan Robb will be bringing her unique installation of "Warmth, Giant Black Toobs" to Lake Burien School Park on July 17 from 11 a.m. to 4:30 p.m.

In the art piece, Robb uses solar power and ambient breezes to give life to black plastic garbage bags. Polypropylene bags, 50 feet tall by 30 inches in diameter, are inflated with air by allowing the wind to fill them or by running with them.

One end is staked to the ground; the other end is free. The sun does the rest.

Employing a similar principle to that of hot air balloons, the sun heats the air inside the "toobs," and since hot air is less dense than cold air, the "toobs" become buoyant.

The artist will be on site for questions.

The touring installation is sponsored by 4Culture of King County.