The smallest Rocket in the Trident Cluster Series. Trident Cluster Series features a payload bay and offers adventurous rocketeers the whopping lift power of three engine cluster flights. This Rocket comes with laser-cut centering rings and fins, decals and 12" plastic parachute. No engine hooks are provided with this kit, as theres no room for them. This rocket must be launched from 1/8" launch rod. Requires Assembly. Wood glue, hobby knife, sandpaper, masking tape, primer and paint needed to build this rocket. Launch system with 1/8" Launch rod, Cluster-Compatible Launch Controller, Rocket Motors and wadding needed to launch this rocket. Specifications Length: 21.3" (54 cm) Diameter: 1.17" (30 mm) Weight: 2.12 oz. (61 g) Motor Mount: 3 x 13 mm. Recovery System: Parachute Projected Max Altitude: 520 ft. (170 m) Recommended Engines: 3 x 1/4A3-3, 1/2A3-4, A3-4