The four corners of the lid are attached with copper metal screws for a very secure closure. The robust polymer construction won't corrode -- maintaining its strength and integrity over time. Many cemeteries require the use of an urn vault to protect the urn and its contents from the elements as well as from possible damage from heavy cemetery equipment. This vault is tested to withstand 4080 lbf (top load pressure)--check with your cemetery for guidelines before purchase.
This urn vault for burial can hold an average adult cremation urn measuring 10 inches tall by 6 inches wide. The
Arrowstar Bronze Niche Urn will also fit well inside this urn vault.