20-gauge wire is a type of electrical wire that is commonly used in various applications, including electronics and crafting. The "gauge" refers to the thickness of the wire, with a lower number indicating a thicker wire. A 20-gauge wire is approximately 0.032 inches in diameter, making it suitable for light-duty tasks. This wire is often used for connecting components in circuits, making jewelry, or creating models. Its flexibility allows for easy manipulation, while its conductivity makes it effective for transmitting electrical signals. Overall, 20-gauge wire is a versatile choice for both hobbyists and professionals.