ESTES COX CORP-Estes: Flying Model Rocket Kit. Estes offers model rockets and rocket kits in a variety of sizes, shapes, colors and skill levels. Enjoy the fun of building a model rocket and the excitement of launching it into the sky! This package contains one Hi-Flier rocket kit. Assembly required, skill level 1. Needed to fly but not included are glue or plastic cement, paint, finishing supplies, engines, igniters, wadding, and a launch system. Recommended for ages 10 and up.