From the manufacturer, the Fellowes Powershred 325Ci 100% jam-proof 22-Sheet Cross-Cut Commercial Grade Paper Shredder The Fellowes Powershred 325Ci Cross-Cut Shredder is 100% jam-proof. Superior Jam Prevention The main source of annoyance for shredder users is paper jams. For this reason, Fellowes shredders are designed to handle any task, no matter how difficult. Three levels of adva are delivered by the Fellowes 325Ci.