Accurately establish, & transfer directly to your drawings, those elusive critical angles & proportions in any composition.
Simply move the sighting strip to correspond with any angle then lay the frame on your drawing, lining up the inner edge of the frame with the vertical line of your drawing & draw in the observed angle
- it's as simple as that!
Frame
Size: 5.25" x 6.5", strip
Size:11.5" long.