Kitchen space is valuable. Waste and recyclables separation are among the main functions of a kitchen and often have to be combined with the storage of kitchen and cleaning utensils. Here separate, hygienic storage conditions, good accessibility and tidiness are especially important. The new accessory concept for Ninka recyclable waste separation systems uses the space within the bins and organizes the base cabinet most flexible and space-saving. At the same time the new accessories avoid unsightly views of the waste separation, so that the whole space in the sink cabinet always looks tidy and beautiful.