Clamshell cases are sometimes called clam shells or clam cases. They are made from resistant polypropylene and are used primarily for CD & DVD. Some of these cases have the capability to incorporate paper inlays and protective adhesive cloth inlays. CShell is the branded version of the clamshell case stocked by Wholesale-Media.com.\nWholesale-Media.com have one of the largest selection of clamshell cases presently on the web.