The Estes B6-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.
| Item Weight | 4.08 kg |
| Manufacturer recommended age | 16 years and up |
| Item model number | C6-0 |
| Number of Puzzle Pieces | 3 |
| Material Type(s) | Plastic |
| Color | ice |
| ASIN | B09357L92F |
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