Richell's Waku Waku Freezing Block Tray set of 6 (all with lids) ⚫︎15ml size (12 blocks) x 2 ⚫︎25ml size (8 blocks) x 2 ⚫︎50ml size (6 blocks) x 2 I purchased these new and used them from the early to middle stages of baby food. There are some minor scratches from use, but no noticeable scratches or stains. I have washed and stored them, but please understand that these are used items before considering a purchase. (I plan to wrap them in packing material and send them via courier.) - Material: Plastic - Purpose: For storing and freezing baby food