<https://precisionenvelope.com/product/9-1-2-x-12-1-2-open-end-envelopes-24lb-white-wove-plain/#product>
<http://schema.org/sku>
"825"^^<http://www.w3.org/2001/XMLSchema#integer>
<https://precisionenvelope.com/product/9-1-2-x-12-1-2-open-end-envelopes-24lb-white-wove-plain/>