• Made of ABS plastic, completely reusable and recyclable. • Includes two terminal strips with 1260 connection points and four distribution strips with 400 connection points. • Allows inserting or removing electronic components as needed, without soldering. • Ideal for assembly, debugging, and training in electronic circuits. • Clear and easy-to-use structure, widely used in experiments, testing, and robotics. • Materials: ABS in black aluminum, spring clip in phosphor bronze and nickel. • Compatible connection wire diameter: 0.8mm.