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To take advantage of the offer, simply stop by any participating location on Thursday for a free 12-oz X-Treme Watermelon Lemonade smoothie while supplies last.
The X-Treme Watermelon Lemonade smoothie is made with watermelon juice blend, strawberries, white grape lemon juice blend, and a touch of sweetness.
Smoothie King’s National Watermelon Day freebie of…
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