<div class="mall-product__properties">
    {% for entry in item.grouped_properties|default([]) %}
        <h3 class="mall-product__properties-heading">{{ entry.group.name }}</h3>
        <div class="mall-three-columns">
            {% for value in entry.values|default([]) %}
                <div class="mall-column">
                    <p>
                        <strong>{{ value.property.name }}</strong><br />
                        {{ value.display_value|raw }} {{ value.property.unit }}
                 