A device for dispensing two compositions into a toilet bowl at different time intervals, the device comprising: a first container [1,301] containing a first composition [2,302]; a second container [3,303] containing a second composition [4,304]; a supporting cage [9,309] supporting the first [1,301] and second [2,302] containers, a lever arm [16,316] pivotably connected to the supporting cage [9,309] by a pivot point [17,317]; the lever arm [16,316] comprising a receptacle [18,318] for temporarily retaining a portion of the flow of water during a toilet flush; a suspension means for suspending the supporting cage [9,309] from a portion of the toilet bowl to position the supporting cage [9,309] within the flow of water during a toilet flush such that at least a portion of the flow of water is directed into the receptacle [18,318] during a toilet flush; characterized in that: the supporting cage [9,309] has a means for conveying [21,321,22,322] the first composition [2,302] to a first dosing cup or first collar and the second composition [4,304] to a second dosing cup or second collar, wherein the first [12, 312] and second [13, 313] dosing cups/collars are disposed on the lever arm [16,316] on opposite sides of the pivot point [17,317]; and the device further comprising a biasing means [20,320] in contact with the lever arm [16,316]; wherein at the start of or during the toilet flush, the water retained in the receptacle [18,318] causes the lever arm [16,316] to rotate from its initial position about the pivot point [17,317] and cause the first composition [2,302] to be dispensed from the first dosing cup /first collar into the toilet bowl; and near or at the end of the toilet flush, the lever arm [16,316] is biased about the pivot point [17,317] by the biasing means to its initial position and causes the second composition [4,304] to be dispensed from the second dosing cup /second collar into the toilet bowl. a first container [1,301] containing a first composition [2,302]; a second container [3,303] containing a second composition [4,304]; a supporting cage [9,309] supporting the first [1,301] and second [2,302] containers, a lever arm [16,316] pivotably connected to the supporting cage [9,309] by a pivot point [17,317]; the lever arm [16,316] comprising a receptacle [18,318] for temporarily retaining a portion of the flow of water during a toilet flush; a suspension means for suspending the supporting cage [9,309] from a portion of the toilet bowl to position the supporting cage [9,309] within the flow of water during a toilet flush such that at least a portion of the flow of water is directed into the receptacle [18,318] during a toilet flush; characterized in that: the supporting cage [9,309] has a means for conveying [21,321,22,322] the first composition [2,302] to a first dosing cup or first collar and the second composition [4,304] to a second dosing cup or second collar, wherein the first [12, 312] and second [13, 313] dosing cups/collars are disposed on the lever arm [16,316] on opposite sides of the pivot point [17,317]; and the device further comprising a biasing means [20,320] in contact with the lever arm [16,316]; the supporting cage [9,309] has a means for conveying [21,321,22,322] the first composition [2,302] to a first dosing cup or first collar and the second composition [4,304] to a second dosing cup or second collar, wherein the first [12, 312] and second [13, 313] dosing cups/collars are disposed on the lever arm [16,316] on opposite sides of the pivot point [17,317]; and the device further comprising a biasing means [20,320] in contact with the lever arm [16,316]; wherein at the start of or during the toilet flush, the water retained in the receptacle [18,318] causes the lever arm [16,316] to rotate from its initial position about the pivot point [17,317] and cause the first composition [2,302] to be dispensed from the first dosing cup /first collar into the toilet bowl; and near or at the end of the toilet flush, the lever arm [16,316] is biased about the pivot point [17,317] by the biasing means to its initial position and causes the second composition [4,304] to be dispensed from the second dosing cup /second collar into the toilet bowl.