Designed for electronic enthusiasts, technicians, students, and engineers, this circuit board is easy to use. Made of durable materials for long-term use, it features a simple yet practical design. It can also be a great gift choice for friends who enjoy electronics projects. Features: - Color: Green - Material: Glass fiber, copper, tin - Size options: 8.00 x 2.00 x 0.15 cm (3.14 x 0.79 x 0.06 in), 3 x 7 cm (1.18 x 2.75 in), 4 x 6 cm (1.57 x 2.36 in), 5 x 7 cm (1.96 x 2.75 in) - Pitch: 2.54 mm - Suitable for daily DIY soldering, maintenance experiments, and other electronic projects - Constructed with sturdy and reliable materials for professional and practical use - Standard IC pitch; universal PCB board with flat surface and centered holes - Precisely designed for reliable performance - Fine craftsmanship; ideal replacement for old or damaged boards Package List: - 5 x 2 x 8 cm breadboards - 5 x 3 x 7 cm breadboards - 5 x 4 x 6 cm breadboards - 5 x 5 x 7 cm breadboards