Features: Physics electrical equipment accessories helps develop critical thinking skills and problem-solving abilities. Science experiment kits can improve kids hand eye cooperation, intelligence development, hands and brain ability. This resistance law experimental teaching equipment not only serves as excellent educational tool but also fosters teamwork and problem solving skills. Learning more about science technology and physics experiments by our physical electrical apparatus. Perfect for classrooms, after-school programs, summer camps, libraries, birthdays, and stem-loving families, fostering teamwork and collaborative learning. Specifications: Component: Plastic, Metal Size: about 22x5.5cm/8.66x2.17' Package Includes: 1 Pc Resistance Law Experimental Teaching Equipment note: Please allow 1-3cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.