Material and safety - Made from professional quality food-grade silicone. Odorless, BPA-free, and safe for the whole family. The smooth silicone surface is easy to clean and dishwasher, freezer, and oven safe. The top uses thick silicone gel for strong support and microwave heating capability. We optimize and upgrade for confident use. Note: other brands’ products may be microwave-incompatible due to stainless-steel frames. Function and compatibility - Each compartment has four fill lines: ½ cup, 1 cup, 125 mL, 250 mL, enabling simple portioning. Up to 4 cups of food storage total. Performance and use - Ideal for freezing leftovers and batch meals: soups, pasta sauce, bone broth, juice, smoothies, porridge, cookie dough, large ice cubes. Great for freezing pre-portioned wet foods, leftovers, and meal prep. Release, cleaning and durability - Unlike traditional plastic molds, these silicone freezing molds withstand long-term low-temperature storage without breaking. Flexible silicone and separated divisions make it easy to remove frozen cubes. A simple press from the bottom releases the blocks. Rounded edges and a smooth surface are easy to clean and dishwasher safe. Space-saving design - The tray is stackable and space-saving. Each silicone tray includes a transparent lid to create an airtight space that keeps food fresh and prevents freezer odors. Easily stacked and transported, saving fridge and freezer space. Use scenarios - Batch meal prep for the week: portion soups, sauces, bone broth, smoothies, porridge, or cookie dough for quick future reheats in the microwave. - Freeze leftovers or pre-portioned wet foods for convenient future meals. - Store small portions or large ice cubes while keeping freezer odor contained with the airtight lid.