This is one of those "How did I ever live without it?" tools. The MKM Decorating Disk is a set of two (one even, one odd division) sturdy, transparent, Mylar sheets.

• Indispensable Decorating tool.
• Make square, triangular, hexagonal, or other shaped plates or bowls quickly and with ease.
• Use it to set the initiation points for a glazing or slip pattern in halves, 3rds, 4ths, 5ths...10ths.
• Line up your handles and spouts perfectly ever time - in just seconds!
• Alter a rim in 3rds, 4ths, 5ths...around the bowl.
• Mark your bats or wheelhead in 3rds, 4ths, 5ths...without a template or protractor.
  
  Use the MKM Decorating Disk to accurately make your marks in just seconds, and have them be right on every time.
  
  Use the concentric circles to quickly center your piece. Colored radial lines indicate even divisions (2,4,6,8,10) on one sheet and odd divisions (3,5,7,9) on the other sheet. The secret is the holes. Along the radial lines are holes that allow you to mark through the disk to the soft, leather-hard or bisqued clay below. Simply put a disk on top of (or underneath) your pot, center it and mark through the holes to your clay.