🔧 Unleash Your Inner Engineer! 31 double-sided boards in 5 sizes for all your DIY needs. Rated for 300V and 16A, perfect for robust projects. 30 vibrant jumper caps to add flair to your circuits. Compact and environmentally friendly packaging for the modern maker. Includes 30 header connectors for seamless integration. eco-friendly pack 5 sizes 40 pin headers The 104pcs Double Sided PCB Board Kit is a comprehensive solution for DIY electronics enthusiasts, featuring a variety of prototype boards, connectors, and jumper caps, all packaged in an eco-friendly design. Perfect for Arduino projects and electronic experiments, this kit empowers you to create with confidence.