Clamshell package contains one Construction Plate. The Construction Plate is dishwasher and microwave safe. It contains features which they have patented that work with Constructive Eating's utensils. No paints are used to color the plate. The plate is manufactured using only FDA approved materials. They have third party certification that their Construction Plate contains NO Lead, NO Bisplenol A (BPA), NO PVC, and NO Phthalates. All of Constructive Eating's products are fully compliant with the CPSIA of 2008.