The North Pole Ice Ball Maker Mold, Creates 4 x 4.5 cm Whiskey Ice Balls, Premium Silicone Flexible Tray, Black Simply the best ice ball maker you can buy - the top of the line set Highest quality silicone ice mold - 100% bpa free food grade silicone ice cube tray with lid, fda approved Flexible ice maker tray - silicone ice trays won't crack or break like stiff plastic molds or trays Makes perfect ice balls for your glass - comes with follow up email with instructions on how to create the perfect ice balls