Engino Mechanical Science: Pulleys Construction Kit ENGINO: Play to Invent Multidimensional construction system. Build structures and machines. Introduces young engineers and physicists the ways pulleys can be used to transfer force with reduced friction and how to increase force or speed. Excellent addition to a home-school curriculum. Brought to you by Elenco. ENGINO: Play to Invent Multidimensional construction system. Build structures and machines. Introduces young engineers and physicists the ways pulleys can be used to transfer force with reduced friction and how to increase force or speed. Excellent addition to a home-school curriculum. Brought to you by Elenco.