Quest Aerospace Astra 1 Model Rocket Value Pack (25) Features Quest's through-the-wall balsa fin design, making quality assembly a breeze Includes color coded parts to make identification for assembly easier and a simple paper cradle to hold the rocket Uses a kevlar shock cord that is anchored right to the engine mount for reliable recovery The 14 inches parachute is already cut-out and the shroud lines are cut to length Measures 0.984-inches diameter by 13-inches length TTW (Through-The-Wall) fin attachment Precision laser-cut balsa fins Color coded parts Kevlar shock cord system Parachute Recovery