BNTECHGO 10Pcs 7x9cm Double-Side Prototype PCB Universal Printed Circuit Board And 1 Pack Solder Wire Dia.1.0mm/0.039Inch 63% Tin 37% Lead 1.8% Flux Rosin Core Net Weight 0.71 Oz/20g BNTECHGO's high quality double-side prototype board and solder wire Double-side prototype board size 7x9cm;grid about 0.1inch(2.54mm);thickness about 1.6mm. Solder Wire Dia.1.0mm/0.039Inch,63% Tin 37% Lead 1.8% Flux Rosin Core,Net Weight 0.71 Oz/20g Package includes: 10pcs 7x9cm double-side prototype board and 1pack solder wire.