The Gronks Challenge the Sharks to Game of Flip Cup
Chris Gronkowski pitches the Ice Shaker to the Sharks, including Alex Rodriguez, with a little help from his Brothers including Rob Gronkowski from the New England Patriots. The Ice Shaker is perfect for anyone that hits the gym as it is a double walled, vacuum insulated, stainless steel shaker bottle that will hold ice for over 30 hours in a 75 degree room. The 'Gronks' demonstrate how to use this product by challenging the Sharks to a game of flip cup in this moment from Season 9, Episode 4 of 'Shark Tank.' Watch Shark Tank SUNDAYS 9|8c on ABC.

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