They have different sizes for the 5 petal cutter, which one should I use.
I have all the sizes and use a size that will give me the correct size flower for what I'm working on. Often I will make some of all the sizes and mix them together to get the look I want. I also use the cutter to make 'fantasy flowers'. When I got my cutters, they came in the various sizes as a set.
The Wilton ones come 3 to a set(pink), if you are using the Wilton rose instr. that is the largest cutter. The rose is about 1 1/2" wide and 1' deep. Just a note of caution, a lesson from my error. I stored my plastic cutters with my metal ones and just by being in the same box together the metal took a bit of a chunk off the thin edge of one of my plastic ones. I now need a new one.
FMM - Five Petal Rose Cutter comes in various sizes....some web sites offer them in sets others as individual. also have
FMM - Rose Calyx Cutter to match. http://www.globalsugarart.com/search.php?search=rose+cutter&searchimage.x=28&searchimage.y=15
another site.... http://www.cakesbysam.com/store/cart.php?target=product&product_id=21632&substring=rose+cutter
Individually they are not that expensive and having a variety of sizes is good.