ITEM NAME:Prototype PCB for Arduino UNO R3 Shield Board DIY, Combo 2mm + 2.54mm Pitch new 1Pcx Prototype PCB for Arduino UNO R3 Shield Board Only ship to the confirmed address provided by.1Pcx Prototype PCB for Arduino UNO R3 Shield Board. PCB Thickness: 1.6mm. Material: high quality FR-4 glass fiber PCB. Pads pitch Top and bottom side are identical copper layers.