Description This is a friction electrostatic experimental equipment tool set for students, which is made of premium material for durable and safe use. The professional physic teaching equipment can train the student's practical ability and their interest in learning, easy to use and convenient to store. Features -Color:Blue -Material:Organic glass and lint - Size: 25.00X0.70X0.70cm/9.82X0.28X0.28in -Note: The style and color of the lint cloth is random. - These friction electrostatic experimental tools are durable and safe, can be used for long time. - Put education in fun, cultivate scientific knowledge. Perfect for any school, or laboratory use. - Stimulate imagination, action ability to the interest in learning, these physical experiment tools offer you great help. -The student frictional electric experiment equipment consists of organic glass and lint, ensuring durabilityand strength. - The set of experiment tools is utilized during physics experiments for studying static electricity. Package list: 2 x Glass Bars 1 x Lint