Bloc Locs groove technology locks onto seams for total controltheres no rocking and seams go where theyre supposed to. The templates make it easy to rotary cut the shapes! The best part is, they are oversized so that if your pieces arent matched as well as they should, the units will be perfectly trimmed with the grooved rulers. The 2:1 Set contains two templates for the shapes and two grooved rulers for the left and right drunkards path units.
