A device that is adapted to add active to the water of a flushed toilet and fragrance to the air in its vicinity, comprises, in a single unit (a) water-soluble rim block comprising active (b) fragrance dispenser, and (c) means for holding (a) and (b) in the path of flush water from a toilet bowl rim, and is characterized in that the fragrance dispenser comprises a container with an opening covered by a membrane having a thickness of from 0.05- 1.0mm and consisting essentially of a homogeneous mixture of 8 to 98 vol. % polyolefin having a molecular weight (weight-average) of at least 300,000, a standard load melt index of less than 0.1 and a reduced viscosity of not less than 4.0, 1 to 92 vol. % filler and 1 to 40 vol. % plasticizer, the fragrance dispenser being orientated such that the fragrance is permanently in contact with the membrane.
