Features: The large battery holder box offer convenient and secure connection, accommodating A battery type for physics electricity experiment use in educational setting. Crafted from ABS and metal, this battery holder case is light weight and easy to assemble, featuring large casing that allows easy observation of internal structures. Very suitable for physics teachers, students, and science enthusiasts, this physics teaching tool support various of electricity experiment activity, such as series circuit and parallel circuit power supply Widely used for classroom teaching demonstration, science labs, and home education, it helps user engaging clear understanding of electrical principles. Enhancing your learning experience with this essential physics teaching aid, designed to make complex concept more accessible and engaging. Specifications: Color: Green Component: Metal; ABS Size: Approx. 10x3.8x3cm/3.94x1.49x1.18in Weight: Approx. 60g Package Includes: 6Pieces Battery Holder Case note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color