Set of 2 medium (10") disks.
MKM Decorating Disks DD-10 are a super useful set of 10 inch (25.4 cm) disks designed to allow users to divide space easily and quickly. They come in a set of two (odd and even) sturdy, flexible, transparent sheets which can be used to evenly space handles, to initiate brushwork, to create multi sided plates, mark throwing bats, and so on.
Use the concentric circles to quickly center your piece. Colored radial lines indicate even divisions (2, 4, 6, 8, 10, 12) on one decorating disk and odd divisions (3, 5, 7, 9) on the other disk. The holes at the intersections of all the radial lines and all the concentric circles allow you to mark directly through the decorating disk to the surface below.