Food safety material: These ice cube trays are made of silicone material and PP material, which are certified by LFGB, safe and durable. They can come in direct contact with food and are harmless for preparing drinks and food. VALUE PACK AND PERFECT SIZE: With 4 ice cube trays, 14 nice big ice cubes per container for a total of 56. These ice cube trays can provide cold food , decorate party drinks, keep seafood fresh or store various foods. Perfect for home use, parties, bars. Compartment Size: 10.1 x 4.2 x 1.4 inches. Removable Lid Stackable: Comes with removable lids, not only for easy stacking, but also keep the ice cubes clean. It will not be contaminated with other things in the freezer when you are preparing baby food or other things. Please do not fill full bowls with liquids, otherwise the lid will not remain securely on the bowl when transferring. Easy to release: made of non-stick silicone so that the cube shape does not break in the fridge, smooth inner and bottom wall make it easier for ice cubes to pop out The smooth silicone surface makes cleaning easier, and they can be safely put in the dishwasher, freeing up your hands and saving you time. Please note that only the bowls are dishwasher safe, the lids are not.