The scalloped rhombus cut out with this plastic tool is a line of connected petals you roll together to form a gumpaste rose with its multiple layers and crevices.

Measuring 60mm x 160mm (2-3/8 x 6-5/16 inch), this single gumpaste cutter allows you to form a rose in four sizes: 20mm (3/4 inch), 35mm (1-3/8 inch), 50mm (2 inch) and 70mm (2-3/4 inch).

Instructions with pictures on back of package walk you through the steps.