ITEM NAME:High Quality Prototype PCB Bte16-04 for Arduino UNO R3 Shield Board DIY New 1Pcx Prototype PCB Bte16-04 Â Board Only ship to the confirmed address provided by.1Pcx Prototype PCB Bte16-04 Board. PCB Thickness: 1.6mm. Material: high quality FR-4 glass fiber PCB. Top and bottom side are identical copper layers.