See if this works with your machine
or
Made from .25-inch thick quality acrylic. Use the HQ 2.5” Circle to make pebbles, petals, filler designs, and more. Ruler packaging includes instructions for use, safety tips and design ideas. Use with the HQ Ruler Base.
Part Number: HQC HG00433
Dimensions: 8" x 9.25" x .5"
Guaranteed to fit because it is a part.