Have it your way! The fins of the Intercepter can be positioned in one of three different ways so students can put their own spin on this uniquely versatile rocket. Includes a 20-ounce plastic bottle, 12" recovery parachute, tubes, rings, nose cone, fin material, decals, and instructions. Pitsco HD Bond II glue recommended for assembly. Finished rocket is 43 centimeters in length. Requires scissors, ruler, clothespin, masking and transparent tape, white and cool-melt glue, paint, permanent marker, and launcher, sold separately.