Cubes are filled with a non-toxic gel making them outlast regular ice cubesThese stainless steel cubes never melt providing a more flavourful and colder drinkKeep the cubes in the freezer - always ready to cool your drinksUse again and again - simply wash after use and place in the freezer for 4 hoursIncluded case keeps the cubes clean and always ready-for-useMade of stainless steel & non-toxic cooling gelDimensions of cubes: 4cm(L) x 4cm(W) x 4cm(H)2 cubes of 40mm and storage case includedHand washDesigned in Canada