Into The Wind 7-ft USA Levitation Delta Kite Our Levitation Deltas have oversized keels and trailing edge flaps for exception Made of lightweight 40-denier ripstop nylon, they thrive in our flaky mountain w Fiberglass frames. Three tail attachment points. 7'-0" x 3'-7". Compact 27" cases make them easy to take with you. 5 to 20 mph wind range. Use 50-lb. Dacron Line.