Most listings show salad/small plates ranging from about 6.8 inches up to about 8.5 inches. An 8-inch salad/dessert plate is also common, and some party sets pair 8-inch salad plates with larger 10-inch dinner plates.
Listings note children's plates as BPA-free; some silicone options are also labeled free of phthalates and PVC.
Listings mention raised or slightly raised edges and rims, divided plate sections, and suction-style bases on some silicone kids' plates to reduce spills and keep foods separated.