840456052419

I do not have any information on a product with the barcode 840456052419 that is reported as "curtain." The barcode does not appear to match any known products in my databases, and therefore, I cannot provide further details, such as product specifications, pricing, or any warnings related to it.

This lack of information may indicate that the product is not widely recognized, may not be available in major retail channels, or could be a newer item that is not yet documented. For accurate information, it would be best to contact the manufacturer or a retailer directly, as they would have the most up-to-date details on the product associated with that barcode.