A two-roll dispenser is disclosed for a plurality of rolls of products, in one embodiment a plurality of toilet paper rolls. The operation of resetting the device to accept replacement rolls of product is achieved by opening the casing. The seer mechanism is also disclosed in one form maintaining a secondary roll of product in a reserve position until a primary roll of product is substantially consumed. The seer mechanism is also disclosed in another form maintaining a casing door in a reserve position until a primary roll of product is substantially consumed. In one form, rolls of product having a partial or split core are utilized to achieve the objects of this disclosure.