This ruler features easy-to-read black and white markings with whole, half, and eighth-inch increments for precise cutting. Turn it around for 1/4" and 3/4" cuts, and use black stars to highlight 1 1/2" measurements. Black lines square up blocks to 6", while white lines square up to 6 1/2". Ideal for fussy cutting and trimming embroidered blocks, it adjusts for thickness to ensure accuracy. The ruler glides smoothly over fabric but grips firmly when pressure is applied, preventing slipping and miscuts. Step-by-step illustrated instructions are included.