Description This item is a double-pole for students and beginners. Made of premium material, it is durable and safe to use. Special equipment for students classroom and laboratory experiments. Moreover, it can strengthen the student's manual ability and improve their learning interest. Features - Color: Assorted color. - Material: Plastic, metal - Size: 10.00X5.50X2.50cm/3.93X2.16X0.98 inch. - Though it is simple in design, it's so practical when you use it. - Made of high-quality materials, high strength, good toughness, not easy to crack. - Funny enough to strengthen the manual ability and improve learning interest. - Great for students and beginners who want to learn basic circuit. - It is manufactured with professional technology to ensure the of the product and can work for a long time. Though it is simple in design, it's so practical when you use it. Made of high-quality materials, high strength, good toughness, not easy to crack. Funny enough to strengthen the manual ability and improve learning interest. Great for students and beginners who want to learn basic circuit. It is manufactured with professional technology to ensure the of the product and can work for a long time.