HTML:
<div class="__pf" data-pf-type="ProductVariantSwatches">
        <form action="">
            <input type="radio" name="1">
            <input type="radio" name="1">
            <input type="radio" name="1">
            <input type="radio" name="1">
            <input type="radio" name="1">
            <input type="radio" name="1">
            <input type="radio" name="1">
            <input type="radio" name="1">

        </form>
    </div>