What vehicle is GM P/N 19132453 for?

[mountainbiker]

I bought a rear cargo cover for a HUMMER H3 from http://Hummer.AutoWebAccessories.com. The web picture showed a soft stretchy cover that was secured at the side by bungle like cord with a part number 15086317.

What I received was wider than my cargo area and rigid. It is similar to the ones on Ford Explorers. This cover has a GM part number 19132453.

I am wondering what vehicle it is suppose to fit. You think maybe it is for the H2? I emailed the company, and they are checking. However, I would have though it would have been an instant check for them.