50Pcs DIY Prototype Paper PCB Universal Experiment Matrix Circuit Board 5x7cm Brand new and high quality. Material: Single Side Copper PCB. Hole Dia: about 1mm. Hole pitch: standard 2.54mm. For point to point DIY soldering. Quantity:50. Original box: No Color: As the picture show Item size: 71*51*1mm Net weight: 47g Package weight: 250g 50 x PCB Universal Board