Description: [HANDS ON LEARNING] This Salt Water Powered Science Experiment Kit is the perfect way to introduce your child to the world of STEM learning in a fun and interactive way [SIMPLE MACHINES] This science experiments kit featuring easy to use and understand simple machines, is an excellent way to teach your child about the basics of engineering [DURABLE MATERIALS] DIY mini generator made from high quality, durable wood and plastic, this kit is built to last through countless experiments and activities [CREATIVE EXPERIMENTS] With this science experiment kit, your child will be able to variety of creative experiments that help them find the world of science and engineering [EASY TO ASSEMBLE] this education model toy kit is easy to set up and use, making it perfect for children of all ages Size Chart: approx 6.2cmx9.8cmx12cm/2.44inchx3.86inchx4.72inch Package Includes: 1 DIY Mini Generator Science Experiment Kit Note: Please allow slightly errors due to manual measurement and different monitors.