5PCS Double Side Prototype PCB Tinned Universal Breadboard 3x7 cm 30mmx70mm Grid : 0.1" (2.54mm) Thickness : 1.6mm Hole diameter : 0.9mm Material : FR-4 (glass fiber) All holes are plated through Both sides are identical Dimension : 30x70mm (1.18 x 2.76") Hole : 24x10 240 Hole Package Included: 5 x Double Side Prototype PCB Tinned Universal Breadboard 3x7 cm 30mmx70mm