Prototyping FR4 Printed Circuit Board,4 x6 InchProduct Details:Material: FR – 4 Glass FiberSolderable Copper Rings On One SideEach Board Measure ~ 4″ x 6″58 Rows x 38 Columns With 2204 PointIndustrial Standard Spacing: 0.1 Inch MatrixThickness of Board: 0.06″Quantity: 5 PiecesUsed To Mount Components When Prototyping CircuitsNippon AmericaST-BB4-CPR 5pcs