A device for dispensing a composition into a toilet bowl post flushing, the device comprising: a) a single container containing a composition suitable for dispersing into a toilet bowl, wherein said container is the sole container of the device for dispersing said composition into a toilet bowl; b) a supporting cage supporting the container, the supporting cage having a means for conveying the composition to a dosing cup, wherein the dosing cup is the sole dosing cup in the device to receive the composition from said container; c) a lever arm pivotably connected to the supporting cage by a pivot point; d) a receptacle for temporarily retaining a portion of the flow of water during a toilet flush; a biasing means in contact with the lever arm; wherein the receptacle comprises one or more drainage holes; and e) a suspension means for suspending the supporting cage from a portion of the toilet bowl to position the supporting cage 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 during a toilet flush; characterized in that the lever arm comprises the dosing cup, the dosing cup being preferably disposed on the lever arm distal to the pivot point, wherein during the toilet flush, the weight of the flush water retained in the receptacle causes the lever arm to rotate from its initial biased position about the pivot point and cause the composition to move from the container to the dosing cup; and further wherein at the end of the toilet flush, the lever arm is biased about the pivot point by the biasing means to its initial position and causes the composition to be dispensed from the dosing cup into the toilet bowl. a) a single container containing a composition suitable for dispersing into a toilet bowl, wherein said container is the sole container of the device for dispersing said composition into a toilet bowl; b) a supporting cage supporting the container, the supporting cage having a means for conveying the composition to a dosing cup, wherein the dosing cup is the sole dosing cup in the device to receive the composition from said container; c) a lever arm pivotably connected to the supporting cage by a pivot point; d) a receptacle for temporarily retaining a portion of the flow of water during a toilet flush; a biasing means in contact with the lever arm; wherein the receptacle comprises one or more drainage holes; and e) a suspension means for suspending the supporting cage from a portion of the toilet bowl to position the supporting cage 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 during a toilet flush; the lever arm comprises the dosing cup, the dosing cup being preferably disposed on the lever arm distal to the pivot point, wherein during the toilet flush, the weight of the flush water retained in the receptacle causes the lever arm to rotate from its initial biased position about the pivot point and cause the composition to move from the container to the dosing cup; and further wherein at the end of the toilet flush, the lever arm is biased about the pivot point by the biasing means to its initial position and causes the composition to be dispensed from the dosing cup into the toilet bowl.