Ice Tube Maker is the 'hottest' new way to keep bottled drinks cold! Just fill, freeze, then slip a frozen ice tube into any bottle of water, soda, or other beverage for instant cooling. No more chopping up ice cubes and trying to force them into narrow-neck bottles! Great for sports bottles or thermoses. Set of two 9 1/2" long trays; each makes ten 3" long x3/4" diameter ice tubes.