Electromagnetic Pendulum Swing Teaching Experiment Tool Kid Physic Children DIY Education EquipmentDescription:Style:PuzzleType:PracticeMaterial:WoodColor:As the picture showSize :Lenght:11cm  height:11cmWeight :140g Package included:1Xmaterial package1XglueDescription:Style:puzzleType:practiceMaterial:woodColor:yellowSize about:11cm long、iicm highWeight about:140g Package included:1Xmaterial package1Xglue