iRainy Chilling Rocks Reusable Ice Cubes
– Keep Warm/Cold Drinks Cold.
– Please wash stones before first use.
– Place stones in freezer for 1-2 hours or more.
– When ready, add 3-4 frozen cubes per drink and enjoy.
– To clean–only rinse with warm water and air dry.pls noted that you need to hand wash these ice cubes and do not place them in the dishwasher.