Pulley is simply a collection of one or more wheels over which we can loop a rope to make it easier to lift things. That is why scientists named their simple machines. This model illustrates the mechanical advantage of combining the number of pulleys.Our similar products for Mordern Science park First order levers Second order lever Loop the loop Newtons third law Cycloidal path Double ended cone Balancing bird with geodesic dome Mass and Inertia Friction and speed Rolling Motion of disc conservation of energy KEPLER'S LAW OF PLANETARY MOTION Bell Tower Parabolic dishes Musical tube Eco Tube Wave Motion Nipkow disk Revolving Periscope Pin Hole Camera Variable pendulum Barton's pendulum Newton disc Archimedes screw Gear drive Trainer Worm wheel trainer Inclined plane Lift your self Rain gauge Humidity meter Sun Dial Maxima minima thermometer World time Globe DNA double helix model Molecular fabricated Acrylic casing model Periodic table Crystal Structure SSC MODEL Actual working of Dam Passing parabola Cube with hollow cylinder and many more. These are constructed from superior raw materials and have strength to withstand tough weather conditions. We find their wide installation in garden area of schools.