If you are looking for a physics experimental prop, then your research is here. That's because our products can meet your needs. It is made of plastic, steel materials and craftsmanship, durable and practical, and can provide you with stable working performance. Features -Color:Black -Material: plastic,steel -Size:12.80X6.90X6.50cm/5.03X2.71X2.55in - This set of equipment effectively showcases the concept of inertia through visually captivating demonstrations. - By engaging in practical experiments, students can gain a better understanding of mechanics. - The teaching equipment is designed for easy installation, and easy to use. - This toy is a perfect decoration for desks and tables, whether at the office, classroom or at home. - This equipment is specifically designed for use in school physics teaching and experimental courses, making it an ideal tool for educators in these fields. Package list: 1 x set of Experiment Toy