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Ball Spring is a lunar bot. She is 2 10/12 ft x 1 6/12 ft x 1 6/12 fully extended. She can become 2 5/12 ft x 1 6/12 ft x 1 6/12 ft dis extended. To overcome the difficulty of moon dust, she has air seals over all her electronics and electronic Moters. To charge her battery, she has a built-in solar panel. She has an antenna to receive radio Commands. She also has a retractable rock/dust ben. To mine rock and dust, she has a rock saw, rock and dust scooper, and a rock claw. So, hopefully she can help you in your moon mission.