Sour Power Belts Unwrap Watermellon comes in a convenient and portable packing 150 counts per pack. Sour Power Belts Unwrap Watermelon has the taste that kids (and kids of all ages) love! Since 1985, Sour Power has been offering a variety of shapes, packages, and mouth-watering flavor varieties that people can't seem to get enough of. Sour Power Unwrap Sour Belts - Cotton Candy. Super sour Cotton Candy belts have pink and blue stripes, sure to make your mouth pucker! Each sour belt is approximately 9 inches long. The rainbow-striped sugar sanded belt looks like it was picked right off the sky after a rainy day. Use these on your candy buffet table or just as a go-to treat.