Electroless Nickel/Immersion Gold technology prevent the copper on PCB from being oxidized and corroded and is good for soldering and touching.
Used among electronic experiments and point-to-point DIY soldering projects, can be expandable with pin header and female header, designing your own Arduino kits.
Made of glass fiber FR-4 material, having the ability of high heat resistance, corrosion resistance, mechanical strength, insulation.
Standard IC spacing 2.54MM hole plated through among the pad, Components and stuff can be mounted variously on your will.
Compared with professional PCB, Universal Board is more easy to use, to plug and play, and low cost.