Back at the shop – Clearly Perfect Slotted Trimmers! An easy, efficient & accurate method to square-up half-square triangles. Align the seam of an unpressed HST with dashed lines and with easy strokes, trim all four sides. The unique edge slots allow for trimming of the dog ears at the same time. No need to rotate fabric to realign. Other uses include: square-up hour glass blocks, strip piecing of half square triangles, strip tube method of block construction and fussy cutting. These are a very special order item and only receive them once or twice a year – we have 20 available and they are $49.99!