Ohm's Law Keychain, the perfect quick-reference tool for anyone working with electricity and circuits. Designed for engineers, electricians, and students, this keychain features a color-coded formula wheel to help you solve electrical equations on the go. Whether you're studying for exams, working in the field, or just love science, this stylish and functional keyring is a must-have. Crafted from premium acrylic, it is lightweight, durable, and built for everyday use. The bold, high-contrast print ensures formulas remain easy to read over time, making it a reliable accessory for work or study. Its 2-inch compact size allows you to attach it to keys, backpacks, toolkits, or work badges effortlessly. Looking for a unique and useful gift? This Ohm's Law Keychain is a great present for students, electricians, physics teachers, and anyone in the electrical field. Whether for graduations, birthdays, or appreciation gifts, it's a simple yet practical addition to their daily essentials.