The circle thingies are also great to roll out your fondant to the right thickness too!!! I love mine! There are 4 different sizes in the bag so you can even use these for biscuits too!!! Let's see it says it has them in 1/16", 1/8", 1/4", and 3/8". you can use them on the fondant roller also. Can you tell I really love my set!!???