A construction set consisting of 32 colored beams made of eco-friendly materials to reduce their environmental impact. It is designed to develop skills and abilities as well as fine psychomotor skills, concentration, perseverance, cooperation and teamwork. The didactic guide proposes 40 activities arranged according to their level of difficulty, which makes it suitable for use in different educational levels. Content: 32 connectable beams, 1 non-woven bag and 1 didactic guide.