Pulley Dynamometer Fixed & Moving Pulley Physics Experiment DIY Science Educational Toys Kit

Features 1 Happy and easy to learn2 Exercise your children practical ability3 Train your children observation capability thinking and analytical skillsLearning Points Fixed pulley movable pulley conceptWhy the fixed pulley can notsave effort but movable pulley can save effort Explanation With movable pulley can save ahalfpower fixed pulley is a lever arm no save effort nor effortless but it can change the direction of force Package Included 1 x Pulley Physics Experiment KitMore Details