I'd advise ordering a "sample" of the plastic covers or obtaining more of a description from any vendor.
I love DESI's labeling product, however, it was a smart decision to discontinue offering the plastics they had for Partner and MLS series phones. They were a very thin 2-dimensional flat sheet stamped with holes for the buttons and tabs that bent under and into the anchoring points.
These thin plastic covers chronically bubble up in the middle at make it impossible to read the desi label below without first pushing on the plastic cover between the buttons.
Most refurb shops offer the original 3-dimensional thick (3/32"'s or so) molded plastic covers, but ask and know! While I don't have any specific co's to suggest, I'm sure you'll get a few responses and recommendations in this thread.