To provide a sink accessory for placement on a sink, which can be positioned in a simple and stable manner on the sink, without having to be formed on the sink more horizontal support surfaces at the same height level and without limiting the functionality of the sink accessory or the sink It is suggested that the sink accessory include a first coupling device for coupling the sink accessory to a first side wall of a sink of the sink and a second coupling device for coupling the sink accessory to a second sidewall of the sink of the sink opposite the first sidewall.
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