Features: Efficient descaling, for multiple uses, easy to carry for people who need to use electric kettle frequently Quickly dissolve limescale, suitable for electric kettle, coffee maker and many other home appliances ; Convenient and quick cleaning of electric kettle and other home appliances in various place such as home kitchens, office, school dormitory and so on. Formulated with food grade sodium bicarbonate, citric acid, and natural lemon extracts for descaling action while protecting metal from corrosions. Contains 12 tablets in a box, long service life; lightweighted Specifications: Item: Kettle Descaler Remover Single Tablet Pack： 4x4.5cm/1.57x1.77in QUantity: 1Box （5gx12pcs） Package Includes: 1Box Kettle Descaler Remover note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution