ITEM NAME:10pcs-5x7cm DIY Solder Prototype Paper Single Side Copper PCB Universal Boa R0D1 Features: - For point to point DIY soldering - Material: Single Side Copper PCB - Hole Dia: about 1mm - Hole pitch: standard 2.54mm - Dimension: 5 x 7 cm What's in the package: - 10Pcs * 5x7cm DIY Solder Prototype Paper PCB Universal Board.10Pcs 5x7cm DIY Solder Prototype Paper PCB Universal Board. - Material: Single Side Copper PCB. - For point to point DIY soldering. - Hole pitch: standard 2.54mm. - Hole Dia: about 1mm.