1. This kit features 432 precisely drilled holes with a diameter of approximately 1.0mm each,spaced 2.54mm apart for easy component placement. 3. Perfect for soldering LEDs, ICs, DIPs, connectors, resistors, sensors, transistors, and other electronic components with standard 1-inch pin spacing. 4. The single-sided copper strip design of these prototype boards makes them incredibly easy to solder, providing a reliable base for beginners and experts alike to build and test various circuit designs. 2. The boards are 1.2mm thick,ensuring durability and robust handling during the soldering process. 5. Each package includes 10 single-sided copper strip circuit boards, offering ample quantity for multiple projects or complex electronic experiments., Weight: 0.10802650838 pounds, Manufacturer: Blisfulhoks