ESTES COX CORP-Estes: Model Rocket Launch Set. Estes offers model 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 Silver Arrow model kit. Included are one Silver Arrow model rocket, one launch pad, one launch controller, one parachute, and instructions. Needed but not included are four AA 1.5V batteries and an Estes rocket engine. Skill level: E2X. Recommended for ages 10 and up, adult supervision under 12. Assembly required. Imported.