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. .