ITEM NAME:20PCS Double Sided Protoboards Circuit Universal DIY Prototype PCB Board 4cmx6cm Descriptio n Description: 100% brand new and high quality All holes are plated through Both sides are identical Specifications: Material: Metal, Etc. Color: Green Size: 4*6CM Thickness: 1.6MM Pitch: 2.54MM Aperture: 1.0MM Package Included: 20 *Â Double Sided PCB Boards Note: 1.Due to the manual measurement and different measurement methods, please allow 2-3mm deviation. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! 20PCS Double Sided Protoboards Circuit Universal DIY Prototype PCB Board 4cmx6cm.20 Double Sided PCB Boards. Pitch: 2.54MM. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner. Aperture: 1.0MM.