A tissue dispenser configured to sequentially dispense tissue material from a stub roll and a main roll, the tissue dispenser comprising: a main roll support; a stub roll support; and an advance system configured to convert the tissue dispenser to dispense the tissue material of the main roll when the tissue material of the stub roll is exhausted, the advance system comprising a drum (21, 22); drum; the tissue dispenser configured such that: when the tissue material of the stub roll is dispensed, the tissue material of the stub roll is disposed around at least a portion of the drum and is fed through the advance system, and an end portion of the tissue material of the main roll is disposed between a front cover and the drum; and when the tissue material of the stub roll is exhausted, a stop cover moves downward by force of gravity and disengages from the front cover and the front cover engages the end portion of the tissue material of the main roll with the drum, thereby enabling the tissue material of the main roll to be fed through the advance system and dispensed, wherein: the front cover is configured to engage the tissue material of the main roll with the drum of the advance system; and the stop cover is configured to be supported by the tissue material of the stub roll and to engage with the front cover to space the front cover apart from the drum. a main roll support; a stub roll support; and an advance system configured to convert the tissue dispenser to dispense the tissue material of the main roll when the tissue material of the stub roll is exhausted, the advance system comprising a drum (21, 22); drum; the tissue dispenser configured such that: when the tissue material of the stub roll is dispensed, the tissue material of the stub roll is disposed around at least a portion of the drum and is fed through the advance system, and an end portion of the tissue material of the main roll is disposed between a front cover and the drum; and when the tissue material of the stub roll is exhausted, a stop cover moves downward by force of gravity and disengages from the front cover and the front cover engages the end portion of the tissue material of the main roll with the drum, thereby enabling the tissue material of the main roll to be fed through the advance system and dispensed, wherein: the front cover is configured to engage the tissue material of the main roll with the drum of the advance system; and the stop cover is configured to be supported by the tissue material of the stub roll and to engage with the front cover to space the front cover apart from the drum. when the tissue material of the stub roll is dispensed, the tissue material of the stub roll is disposed around at least a portion of the drum and is fed through the advance system, and an end portion of the tissue material of the main roll is disposed between a front cover and the drum; and when the tissue material of the stub roll is exhausted, a stop cover moves downward by force of gravity and disengages from the front cover and the front cover engages the end portion of the tissue material of the main roll with the drum, thereby enabling the tissue material of the main roll to be fed through the advance system and dispensed, wherein: the front cover is configured to engage the tissue material of the main roll with the drum of the advance system; and the stop cover is configured to be supported by the tissue material of the stub roll and to engage with the front cover to space the front cover apart from the drum. the front cover is configured to engage the tissue material of the main roll with the drum of the advance system; and the stop cover is configured to be supported by the tissue material of the stub roll and to engage with the front cover to space the front cover apart from the drum.