Size (W X L): 102 x 53 in. / 259 x 135 cm.Wind Range: 5 ~ 20 mph (1-4Bft)Fabric: Ripstop NylonFrame: Tubular FiberglassLine: Recommended 90 lb. Test LineOur 9-Foot Deltas are fantastic flyers. Framed with sturdy, light weight fiberglass rods, these gigantic sails launch smoothly and gain altitude gracefully. The delta design naturally adapts to a wide range of wind conditions making it easy to fly.