Bloc Loc’s Flying Geese 1 1/2″ x 3″ ruler locks onto the seams for instant ruler placement, control so that the seams end in each corner and trims the correct amount across the tip. Once a unit is completed and trimmed, it will measure 2″ x 3 1/2″. Trims full and partial flying geese, parallelograms, square in a square and many, many other versions of flying geese units.
