This Square Cookie Cutter 3.5cm. . Sweet Themes Cookie Cutters are made from sturdy high quality 18/0 grade stainless steel, and will not rust. Because of the quality of the steel they have a sharp cutting edge therefore give a crisp finish when cutting. The cutters are 2cm deep.Perfect for fondant, cookie dough, sandwiches, fairy bread, pizza dough, play dough, fruit, cheese and modeling clay just to name but a few uses.