This isotropic ferrite kit is designed for , perfect training tools for science class, help teachers/parents who wants their learn more about science/ . And it will attract attention obviously. Features - - Material: Plastic. - Size: 14.20 x 8.20 x 3.50cm/ 5.58 x 3.22 x 1.38 inch. - Learn the basic physics principles and investigate the physics and magnetism by doing experiments with these kit set. - Physics is a practical science. , appropriate physics activities and investigations are not just motivational and fun. - They can also sharpen students’ powers of observation, stimulating questions - And they are the key to enhanced learning, clarification and consolidation of theory - Some activities done with the kit. Earth is a giant magnet. Seeing ? Interactive forces Package list: 8 Sets x magnetism kit