First Cup First Straw Straw Mug Richell Freezing Tray 15ml x 2 Divided Freezing Tray 50ml x 18 Divided Freezing Tray 100ml x 10 Microwave/Rice Cooker Safe Porridge Cup There are no noticeable stains. (Some color transfer on the freezing trays) The First Cup was only used a few times. The First Straw was used by the child for several months. You can customize the drinking spout and handle of each, so you can enjoy changing the colors depending on the day.