2.4" x 2.7" ProtoBox Kit, FR-4, RoHs, size: 2.4 x 2.7 board with 1 oz. copper, holes are paired, holes are .042" in diameter, mounts with (4) 4-40 screws included, box is ABS plastic black & size is 4.4" x 2.6" x 1.1", has a battery door (holder not included)