The saltwater battery box primary cell experiment fruit battery power generation kit is an excellent tool for middle and primary school students to explore the principles of physics. This kit allows students to create a working battery using common fruits like lemons or potatoes, demonstrating of electricity generation in a fun and engaging way. Features -Color:Multi -Material: ,copper plating,zinc plating -Size:10.00X7.90X4.80 cm/3.93X3.10X1.89in -Innovative experiment equipment: this saltwater battery kit offers a unique way to conduct primary cell experiments, sparking students' interest in physics - electricity: utilize fruits to generate electricity, addressing power shortages during experiments -Learning: ideal for middle and elementary school physics classes, providing practical opportunities to enhance students' skills -Science kit: this is an excellent addition to classroom or labs, providing a fun way for students to learn about physics and energy,science project fruit battery -Versatile usage: for classroom teaching, and technology competitions, offering flexible application scenarios Package list: 2 salt boxes, 2 x pairs metal sheets