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Easy to follow directions with sure fire results! Listed for 8 year olds, but it is very entertaining for our younger primary age grandchildren who help us fill the reservoir with vinegar and baking soda and then stand way back to watch the rocket lift off. Adult guidance is needed with young children. The rocket itself is durable and can be used many times over. Great birthday gift for primary students.
Verified purchase: Yes | Condition: New
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