These 5" x 7" Black Perforated Large Hole Crossover Boards, sold in pairs, offer a straightforward method to create neat, professional passive crossover networks. Simply position your components, secure them with glue, and connect them on the board's reverse side. The 0.07" perforations accommodate up to 14 gauge solid wire, making them versatile for most crossover components. With no copper present, just holes, the possibilities are endless.