PRO - the Extra Set for demanding construction projects. Professional players combine the multifunctional PRO elements to create complex track systems. 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 group. CUBORO promotes collaboration - at home, in kindergartens, schools and teams.