1 Set Table Tennis Elasticity Model Science Teaching Aids Children Science Shooting Toy

Description The rubber band has good elasticity. The catapult uses the elasticity of the rubber band to wrap the rubber band around the fuselage. Due to the deformation of the rubber band the elastic potential energy is converted into kinetic-energy at the moment of releasing the rubber band and the pong ball pops up immediately. Features - Color: Wood color. - Size: 27.50X13.00X0.20cm/10.81X5.11X0.08 inch. - Material: Wood. - Principle: The elastic potential energy is converted into kinetic-energy and the kinetic-energy generated by the scientific experiment can make the ball pops out at a straight line distance of about 4 meters. - With great detailing for structure this model fit wonderfully on desk or shelf good aid in school. - It is both a model and a teaching aid cultivating children s hands-on ability and learning knowledge while playing. - Good for school teaching tool learning display and collectibles also used as a great addition to your labs. - Nice educational toy let your kids assemble independently and encourage imaginative in children.