<https://hardylandscapingsupplies.co.uk/product-category/surface-usage/paving/natural-paving/accessories-natural-paving/fire-pits/#primaryimage>
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"Fire Pit Steel Insert"
<https://hardylandscapingsupplies.co.uk/product-category/paving/natural-paving/accessories-natural-paving/fire-pits/>