Features: The universal board is a circuit board covered with pads at standard IC spacing (2.54MM), allowing component insertion and connections as desired. Also known as a "hole board" due to its all-hole design. Compared to professional PCBs, perforated boards offer low usage thresholds, cost-effectiveness, convenience, and flexible expansion. Cut these PC boards to any shape and size to meet your specific needs. The double-sided original circuit board is exceptionally strong and durable, with a tin-plating process that simplifies component soldering. Made from FR4 full fiberglass board material, effectively preventing board detachment. Specifications: Material: Plastic Size: Approx. 6x8cm/2.36x3.14inch Thickness: 0.4mm Ap erture: 1.0mm (5% error) Hole spacing: 2.54mm External dimensions: 62.4x80.2mm Weight: 4g The flexible experiment board can be folded without deformation. Note: Please allow 1-2cm error due to manual measurement; ensure you don't mind before ordering. Due to differences in monitors, the image may not reflect the actual color of the item. Thank you for your understanding. Package includes: 1x PCB Board