The tray achieves 3.8 inches of long and narrow ice cubes designed to pour into your water bottle and keep it cold for a long time without having to freeze it overnight. Cylindrical cavities can be used for ice cream, chocolates and other desserts and crafts. Stackable Lids - Each tray has a lid. With our lockable lids you won't spill a drop of water again! The ice cube trays can also be stacked to save space. And helps protect against freezer odors. Sturdy and easy to release - The bottom is specially designed as a groove shape to make it easier to release the frozen contents, no leaks and no problems! There are two fillers built in between the grooves for stability. Each tray can make 10 cubes once. The size of the tray is 24 x 11.5 x 3 cm. The size for each stick cube is 10 x 2 x 2 cm.