Last year, Tampax introduced the "Pocket Pearl," a small tampon designed for girls on the go.

The company said last year that the new tampon was designed to help girls seamlessly incorporate their period into their busy lives.

"One in every two girls believes their period holds them back from certain activities," the company said in a press release. "We know that any day can turn into an adventure for girls, and we want to make sure nothing stands in their way, especially their periods."

But about a year after the product launched, some angry customers are giving the Pocket Pearl some seriously bad reviews.

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As Cosmopolitan first reported, the tampons have just a 2-star review on Amazon. Many angry customers have written that the tampons are falling apart in their hands, while others have struggled to figure out the complex design.

As Cosmopolitan first reported, the tampons have just a 2-star review on Amazon. Many angry customers have written that the tampons are falling apart in their hands, while others have struggled to figure out the complex design.