The PowerEase Touch 350W Power Supply and SureLock Tandem Midi Nitrocellulose Welcome Pack contains: PowerEase Touch 350W Power Supply, SureLock Tandem Midi Gel Tank, Two SureLock Tandem Midi Blot Modules, SureLock Tandem Transfer Tray and SureLock Tandem Midi Pre-cut Membranes and Filter, 0.2 μm, nitrocellulose