The tray makes 3.8 inch long and narrow ice cubes that are designed to put in your water bottle, keeping it cold for a long time without having to freeze it overnight.Cylinder shape cavities can be used for ice cream, chocolates and other desserts and crafts. . Stackable Lids - Each tray has a lid.The lids help to avoid common spills and mess from carrying, make the trays easy to stack to organize better in your freezer, and protect against freezer odors. . Stable and Easy to Release - Bottom is special designed as Groove shape to make it easy to release the frozen contents, no leaks and hassle free Between Groove two fillers are built for Stability. . FDA LFGB Approved 100% Food Grade Silicone, BPA Free, Easy to Clean, Stores Compact. Microwave, oven, freezer, and dishwasher safe. Good for Temperatures from -40 to 446 degrees Fahrenheit. . Each tray can make 10 stick cubes once. The size of tray is 24 x 11.5 x 3cm. The size for each stick cube is 10 x 2 x 2cm. .