GUJO Adventure Mars Space Base for ages 6 and up. Send your young explorers on a deep space adventure with Gujo, Shelly, and Philip. Blast off in the Mission Mars Rocket and travel to the Mission Mars Space Base! A clear step by step color instruction manual ensures a fun assembly experience. Mission Mars building sets are constructed using high-quality sturdy plastic connectors and durable plastic panels. All pieces are waterproof and washable.