Cuboro Jump Marble Run Extra SetJUMP the Extra Set for adventurous jumps With the JUMP trampolines, the marbles jump over obstacles and canyons. Extra Sets expand the Starter Sets and offer additional fun. CUBORO challenges children and adults according to their abilities while awakening the joy of experimentation and supporting logical thinking. The marble run system trains fine motor skills, strengthens spatial imagination and stimulates creativity. You can play alone or in a