netbox/netbox/templates/dcim/inventoryitem_delete.html

{% extends 'utilities/confirmation_form.html' %}
{% load form_helpers %}

{% block title %}Delete inventory item {{ inventoryitem }}?{% endblock %}

{% block message %}
    <p>Are you sure you want to delete this inventory item from <strong>{{ inventoryitem.device }}</strong>?</p>
{% endblock %}