This is a Richell Wakewake Freezing Block Tray. Storage container. ⚫︎15ml size x 2 ⚫︎25ml size x 4 Material: Polypropylene Microwave defrosting OK Dishwasher OK Boiling/chemical sterilization OK This is a used item. Please refrain from purchasing if you are concerned about the condition. It will be placed directly into a plastic bag and shipped without any packing material. No individual sales or price reductions.