Uxcell a14041800ux1143 25Pcs Double Sided Protoboard Prototyping Pcb Board 4cm x 6cm Product name: double-sided PCB board;Hole DIA.(Each): 1mm Hole Pitch: 2.54mm;total Size: 4 x 6cm/ 1.6" x 2.4"(W*l) Mounting Hole DIA.: 2mm/0.08 inch Materials: PCB,TiN plated,glass fiber;main color: Green, Silver Tone Weight: 176G;package content: 25pcs x double-sided PCB board