Pack of 12 Plastic Plates 18cm Purple. These small round purple plates are dessert size and measure 17.8cm. Perfect for a Disney Princess, My Little Pony or 80s themed party, use these plastic purple party plates to add a fun purple vibe to your party table. Place one on everyone's place setting for a pretty purple finish to your party table. Disposable, not suitable for dishwasher or microwave use.