These ingenious mats simplify the cookie-making process. Use one of the flexible mats to easily roll your dough into a log of your preferred diameter. Secure the rolled-up mat with the attached strap, slide on the end caps and refrigerate or freeze until chilled. When ready to slice, unroll the mat, gently press the log onto the raised lines to perforate the dough for easy, even slicing on a cutting board. (And if you don't want to slice and bake all of the cookies at once, just rewrap your dough and chill until next time.) The bright red silicone set—two mats and four caps—cleans up easily in the dishwasher.