DescriptionAre you still looking for a teaching apparatus to let your student know the electrostatics? Then, our electrostatic experiment equipment set is one of the best choices for you. Using premium material, it is safe and durable. A perfect physics teaching aid for you.Features- Color: As shown. - Material: Plastic, metal. - Size: 12.00X7.00X7.00cm/4.72X2.75X2.75 inch. - Mainly used in middle school physics teaching, to explain electrostatics. - Lightweight and portable, more convenient to store and carry. It's great equipment for students to learn the electrostatics. - Let children cultivate interest in learning and improve grades through practical exercises. - Let students learn electrostatics in interesting experiments and improve their physics performance. - It is a good helper for teachers, parents, train teachers, professors, researchers, etc.