⚡ Ignite Your Curiosity with Logic Gates! Includes AND, OR, NOT, NAND, NOR gates. Get started right out of the box! Perfect for budding physicists! Enhance your learning experience. Stand out in your science class! Compact dimensions 9V battery included 1 puzzle piece The MELODY'S HOBBY CENTRE Logic Gates Combine Model is an educational tool designed to enhance logical thinking through hands-on learning. This all-in-one model features all basic logic gates, requires no assembly, and comes with a study report, making it an ideal choice for school and college physics projects. Compact and lightweight, it includes a 9V battery for immediate use.