Just to keep things tidy!
CopySELECT attribute_id, attribute_code, frontend_label FROM eav_attribute WHERE entity_type_id = 4 AND attribute_id NOT IN(SELECT attribute_id FROM eav_entity_attribute);
SELECT attribute_id, attribute_code, frontend_label FROM eav_attribute WHERE entity_type_id = 4 AND attribute_id NOT IN(SELECT attribute_id FROM eav_entity_attribute);