• 1 inch square perf board
• Designed to be sewn to clothing
• 2x per pack

The ProtoBoard - Square 1" Single Sided (2pk) is a very simple but extremely handy, 1" square, single sided perf board. Standard 0.1" spacing with a 4-40 (3mm) hole for mounting. Every three holes are connected with a 20mil trace. Pack of two.