Picket Pro contains two plastic tools that are both 7/8 inch thick and machined on both sides. One is 11.5 inches in length by 4.5 inches wide while the other is 8.25 inches in length by 3.25 inches wide. Both tools have offsets with predrilled holes to insert wood screws necessary to attach it to a wooden 2 x 4. The tools contain precise measurements that make it easy to align pickets in a consistent and professional manner. • US Patent Pending 63262703