The Hot Ruler by Joan Hawley for Clover’s Press Perfect® line is ideal for larger measuring and pressing tasks such as: home dec, long hems, deep hems, large mitered corners. Making it perfect for today’s trends of ruffles, purse straps, pillow cases, full skirts and more. Unique non-slip surface helps hold fabric in place, offering better management of small hems or when working with delicate fabrics. The nylon fiberboard is heat resistant and can be pressed with a dry or steam iron. Designed with basic ruler marking. Great for pressing long joined pieces straight!