I Don't Need A Calculator - Sheldon Clear Water Bottle Size:750ml This fun design is perfect

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I Don't Need A Calculator - Sheldon Clear Water Bottle Size:750ml This fun design is perfectI Don't Need A Calculator is our Young Sheldon clear water bottle for anyone who works it out faster than everyone else in the room. Fill it up and let the numbers sort themselves. Choose 500ml for everyday carry or 750ml when you want more between refills. Both are clear, lightweight Tritan with a flip up straw lid and a carry loop, so the design shows off from every angle. Every order plants a tree. Free worldwide shipping, no fuss.