For a healthy odour free washing machine, and to disinfect your laundry at the same time, don't delay, use these disinfectant rings! Just place them in the drum with every wash; their silver particles will release ions, which are able to fight bacteria and neutralise bad smells. With them, your laundry and your machine will be clean and they will smell good! Reusable more than 300 times. In plastic and polyester. Diam. 13 cm.