A band of a plurality of link sets is provided wherein each link set comprises a link wherein a first side of such link is bent to form a spring lock, a link wherein a second side of such link is bent to form a spring clip, and a pin extending through the spring lock. The link sets are joined together by inserting the spring lock of one link set into the spring clip of a proximate link set. The band is wrapped around a pipe, the pipe is placed against a second pipe in an orientation in which the pipes are to be joined, the pins are extended from the band to make contact with the second pipe, the band is slid along the length of the pipe until the pins lay above the surface of the pipe, and the contour is marked on the pipe.